Home / 67,809.50-93,577.47-39,130.36

Finding the Fourth Proportional to 67,809.50, 93,577.47 and 39,130.36

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Solution

The fourth proportional to 67,809.50, 93,577.47 and 39,130.36 is: 54,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,809.50 : 93,577.47 = 39,130.36 : x
  2. Step 2: Convert to fraction form
    67,809.50/93,577.47 = 39,130.36/x
  3. Step 3: Cross multiply
    67,809.50x = 93,577.47 × 39,130.36
  4. Step 4: Simplify right side
    67,809.50x = 3,661,719,708.31
  5. Step 5: Solve for x
    x = 3,661,719,708.31/67,809.50
  6. Step 6: Final answer
    x = 54,000.10

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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.