Home / 45,279.31-67,919-15,697.17

Finding the Fourth Proportional to 45,279.31, 67,919 and 15,697.17

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Solution

The fourth proportional to 45,279.31, 67,919 and 15,697.17 is: 23,545.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,279.31 : 67,919 = 15,697.17 : x
  2. Step 2: Convert to fraction form
    45,279.31/67,919 = 15,697.17/x
  3. Step 3: Cross multiply
    45,279.31x = 67,919 × 15,697.17
  4. Step 4: Simplify right side
    45,279.31x = 1,066,136,089.23
  5. Step 5: Solve for x
    x = 1,066,136,089.23/45,279.31
  6. Step 6: Final answer
    x = 23,545.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.