Home / 71,006.18-106,407.78-52,138.18

Finding the Fourth Proportional to 71,006.18, 106,407.78 and 52,138.18

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Solution

The fourth proportional to 71,006.18, 106,407.78 and 52,138.18 is: 78,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,006.18 : 106,407.78 = 52,138.18 : x
  2. Step 2: Convert to fraction form
    71,006.18/106,407.78 = 52,138.18/x
  3. Step 3: Cross multiply
    71,006.18x = 106,407.78 × 52,138.18
  4. Step 4: Simplify right side
    71,006.18x = 5,547,907,721.02
  5. Step 5: Solve for x
    x = 5,547,907,721.02/71,006.18
  6. Step 6: Final answer
    x = 78,132.74

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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.