Home / 91,430.49-126,168.15-51,137.28

Finding the Fourth Proportional to 91,430.49, 126,168.15 and 51,137.28

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Solution

The fourth proportional to 91,430.49, 126,168.15 and 51,137.28 is: 70,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,430.49 : 126,168.15 = 51,137.28 : x
  2. Step 2: Convert to fraction form
    91,430.49/126,168.15 = 51,137.28/x
  3. Step 3: Cross multiply
    91,430.49x = 126,168.15 × 51,137.28
  4. Step 4: Simplify right side
    91,430.49x = 6,451,896,013.63
  5. Step 5: Solve for x
    x = 6,451,896,013.63/91,430.49
  6. Step 6: Final answer
    x = 70,566.13

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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.