Home / 68,545.72-94,555.10-39,862.24

Finding the Fourth Proportional to 68,545.72, 94,555.10 and 39,862.24

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Solution

The fourth proportional to 68,545.72, 94,555.10 and 39,862.24 is: 54,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,545.72 : 94,555.10 = 39,862.24 : x
  2. Step 2: Convert to fraction form
    68,545.72/94,555.10 = 39,862.24/x
  3. Step 3: Cross multiply
    68,545.72x = 94,555.10 × 39,862.24
  4. Step 4: Simplify right side
    68,545.72x = 3,769,178,089.42
  5. Step 5: Solve for x
    x = 3,769,178,089.42/68,545.72
  6. Step 6: Final answer
    x = 54,987.80

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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.