Home / 71,655.04-98,886.24-39,830.08

Finding the Fourth Proportional to 71,655.04, 98,886.24 and 39,830.08

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Solution

The fourth proportional to 71,655.04, 98,886.24 and 39,830.08 is: 54,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,655.04 : 98,886.24 = 39,830.08 : x
  2. Step 2: Convert to fraction form
    71,655.04/98,886.24 = 39,830.08/x
  3. Step 3: Cross multiply
    71,655.04x = 98,886.24 × 39,830.08
  4. Step 4: Simplify right side
    71,655.04x = 3,938,646,850.10
  5. Step 5: Solve for x
    x = 3,938,646,850.10/71,655.04
  6. Step 6: Final answer
    x = 54,966.78

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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.