Home / 67,800.32-93,545.10-39,117.72

Finding the Fourth Proportional to 67,800.32, 93,545.10 and 39,117.72

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Solution

The fourth proportional to 67,800.32, 93,545.10 and 39,117.72 is: 53,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,800.32 : 93,545.10 = 39,117.72 : x
  2. Step 2: Convert to fraction form
    67,800.32/93,545.10 = 39,117.72/x
  3. Step 3: Cross multiply
    67,800.32x = 93,545.10 × 39,117.72
  4. Step 4: Simplify right side
    67,800.32x = 3,659,271,029.17
  5. Step 5: Solve for x
    x = 3,659,271,029.17/67,800.32
  6. Step 6: Final answer
    x = 53,971.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.