Home / 71,455.60-98,614.79-39,634.75

Finding the Fourth Proportional to 71,455.60, 98,614.79 and 39,634.75

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Solution

The fourth proportional to 71,455.60, 98,614.79 and 39,634.75 is: 54,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,455.60 : 98,614.79 = 39,634.75 : x
  2. Step 2: Convert to fraction form
    71,455.60/98,614.79 = 39,634.75/x
  3. Step 3: Cross multiply
    71,455.60x = 98,614.79 × 39,634.75
  4. Step 4: Simplify right side
    71,455.60x = 3,908,572,547.95
  5. Step 5: Solve for x
    x = 3,908,572,547.95/71,455.60
  6. Step 6: Final answer
    x = 54,699.32

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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.