Home / 78,730.38-118,033.20-39,267.18

Finding the Fourth Proportional to 78,730.38, 118,033.20 and 39,267.18

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Solution

The fourth proportional to 78,730.38, 118,033.20 and 39,267.18 is: 58,869.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,730.38 : 118,033.20 = 39,267.18 : x
  2. Step 2: Convert to fraction form
    78,730.38/118,033.20 = 39,267.18/x
  3. Step 3: Cross multiply
    78,730.38x = 118,033.20 × 39,267.18
  4. Step 4: Simplify right side
    78,730.38x = 4,634,830,910.38
  5. Step 5: Solve for x
    x = 4,634,830,910.38/78,730.38
  6. Step 6: Final answer
    x = 58,869.66

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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.