Home / 91,559,636.72-126,321,048.88-56,739,622.40

Finding the Fourth Proportional to 91,559,636.72, 126,321,048.88 and 56,739,622.40

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Solution

The fourth proportional to 91,559,636.72, 126,321,048.88 and 56,739,622.40 is: 78,281,313.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,559,636.72 : 126,321,048.88 = 56,739,622.40 : x
  2. Step 2: Convert to fraction form
    91,559,636.72/126,321,048.88 = 56,739,622.40/x
  3. Step 3: Cross multiply
    91,559,636.72x = 126,321,048.88 × 56,739,622.40
  4. Step 4: Simplify right side
    91,559,636.72x = 7,167,408,614,623,142
  5. Step 5: Solve for x
    x = 7,167,408,614,623,142/91,559,636.72
  6. Step 6: Final answer
    x = 78,281,313.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.