Home / 67,887.20-93,663.12-39,203.20

Finding the Fourth Proportional to 67,887.20, 93,663.12 and 39,203.20

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Solution

The fourth proportional to 67,887.20, 93,663.12 and 39,203.20 is: 54,088.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,887.20 : 93,663.12 = 39,203.20 : x
  2. Step 2: Convert to fraction form
    67,887.20/93,663.12 = 39,203.20/x
  3. Step 3: Cross multiply
    67,887.20x = 93,663.12 × 39,203.20
  4. Step 4: Simplify right side
    67,887.20x = 3,671,894,025.98
  5. Step 5: Solve for x
    x = 3,671,894,025.98/67,887.20
  6. Step 6: Final answer
    x = 54,088.16

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1.5x scale

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.