Home / 75,089.12-112,671.88-47,004.36

Finding the Fourth Proportional to 75,089.12, 112,671.88 and 47,004.36

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Solution

The fourth proportional to 75,089.12, 112,671.88 and 47,004.36 is: 70,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,089.12 : 112,671.88 = 47,004.36 : x
  2. Step 2: Convert to fraction form
    75,089.12/112,671.88 = 47,004.36/x
  3. Step 3: Cross multiply
    75,089.12x = 112,671.88 × 47,004.36
  4. Step 4: Simplify right side
    75,089.12x = 5,296,069,609.40
  5. Step 5: Solve for x
    x = 5,296,069,609.40/75,089.12
  6. Step 6: Final answer
    x = 70,530.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.