Home / 77,543.10-116,315.27-42,463.62

Finding the Fourth Proportional to 77,543.10, 116,315.27 and 42,463.62

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Solution

The fourth proportional to 77,543.10, 116,315.27 and 42,463.62 is: 63,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,543.10 : 116,315.27 = 42,463.62 : x
  2. Step 2: Convert to fraction form
    77,543.10/116,315.27 = 42,463.62/x
  3. Step 3: Cross multiply
    77,543.10x = 116,315.27 × 42,463.62
  4. Step 4: Simplify right side
    77,543.10x = 4,939,167,213.16
  5. Step 5: Solve for x
    x = 4,939,167,213.16/77,543.10
  6. Step 6: Final answer
    x = 63,695.77

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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.