Home / 67,651.20-93,398.40-40,802.40

Finding the Fourth Proportional to 67,651.20, 93,398.40 and 40,802.40

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Solution

The fourth proportional to 67,651.20, 93,398.40 and 40,802.40 is: 56,331.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,651.20 : 93,398.40 = 40,802.40 : x
  2. Step 2: Convert to fraction form
    67,651.20/93,398.40 = 40,802.40/x
  3. Step 3: Cross multiply
    67,651.20x = 93,398.40 × 40,802.40
  4. Step 4: Simplify right side
    67,651.20x = 3,810,878,876.16
  5. Step 5: Solve for x
    x = 3,810,878,876.16/67,651.20
  6. Step 6: Final answer
    x = 56,331.28

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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.