Home / 78,717.50-118,017.92-47,545.46

Finding the Fourth Proportional to 78,717.50, 118,017.92 and 47,545.46

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Solution

The fourth proportional to 78,717.50, 118,017.92 and 47,545.46 is: 71,282.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,717.50 : 118,017.92 = 47,545.46 : x
  2. Step 2: Convert to fraction form
    78,717.50/118,017.92 = 47,545.46/x
  3. Step 3: Cross multiply
    78,717.50x = 118,017.92 × 47,545.46
  4. Step 4: Simplify right side
    78,717.50x = 5,611,216,294.64
  5. Step 5: Solve for x
    x = 5,611,216,294.64/78,717.50
  6. Step 6: Final answer
    x = 71,282.96

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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.