Home / 71,379.04-98,502.90-39,547.60

Finding the Fourth Proportional to 71,379.04, 98,502.90 and 39,547.60

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Solution

The fourth proportional to 71,379.04, 98,502.90 and 39,547.60 is: 54,575.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,379.04 : 98,502.90 = 39,547.60 : x
  2. Step 2: Convert to fraction form
    71,379.04/98,502.90 = 39,547.60/x
  3. Step 3: Cross multiply
    71,379.04x = 98,502.90 × 39,547.60
  4. Step 4: Simplify right side
    71,379.04x = 3,895,553,288.04
  5. Step 5: Solve for x
    x = 3,895,553,288.04/71,379.04
  6. Step 6: Final answer
    x = 54,575.59

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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.