Home / 45,333.90-67,931.55-30,487.86

Finding the Fourth Proportional to 45,333.90, 67,931.55 and 30,487.86

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Solution

The fourth proportional to 45,333.90, 67,931.55 and 30,487.86 is: 45,685.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,333.90 : 67,931.55 = 30,487.86 : x
  2. Step 2: Convert to fraction form
    45,333.90/67,931.55 = 30,487.86/x
  3. Step 3: Cross multiply
    45,333.90x = 67,931.55 × 30,487.86
  4. Step 4: Simplify right side
    45,333.90x = 2,071,087,585.98
  5. Step 5: Solve for x
    x = 2,071,087,585.98/45,333.90
  6. Step 6: Final answer
    x = 45,685.18

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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.