Home / 78,724.17-118,024.83-53,702.19

Finding the Fourth Proportional to 78,724.17, 118,024.83 and 53,702.19

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Solution

The fourth proportional to 78,724.17, 118,024.83 and 53,702.19 is: 80,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,724.17 : 118,024.83 = 53,702.19 : x
  2. Step 2: Convert to fraction form
    78,724.17/118,024.83 = 53,702.19/x
  3. Step 3: Cross multiply
    78,724.17x = 118,024.83 × 53,702.19
  4. Step 4: Simplify right side
    78,724.17x = 6,338,191,845.38
  5. Step 5: Solve for x
    x = 6,338,191,845.38/78,724.17
  6. Step 6: Final answer
    x = 80,511.38

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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.