Home / 78,715.10-118,098.17-47,120.24

Finding the Fourth Proportional to 78,715.10, 118,098.17 and 47,120.24

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Solution

The fourth proportional to 78,715.10, 118,098.17 and 47,120.24 is: 70,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,715.10 : 118,098.17 = 47,120.24 : x
  2. Step 2: Convert to fraction form
    78,715.10/118,098.17 = 47,120.24/x
  3. Step 3: Cross multiply
    78,715.10x = 118,098.17 × 47,120.24
  4. Step 4: Simplify right side
    78,715.10x = 5,564,814,350.31
  5. Step 5: Solve for x
    x = 5,564,814,350.31/78,715.10
  6. Step 6: Final answer
    x = 70,695.64

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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.