Home / 52,117.40-78,060.90-40,338.20

Finding the Fourth Proportional to 52,117.40, 78,060.90 and 40,338.20

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Solution

The fourth proportional to 52,117.40, 78,060.90 and 40,338.20 is: 60,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,117.40 : 78,060.90 = 40,338.20 : x
  2. Step 2: Convert to fraction form
    52,117.40/78,060.90 = 40,338.20/x
  3. Step 3: Cross multiply
    52,117.40x = 78,060.90 × 40,338.20
  4. Step 4: Simplify right side
    52,117.40x = 3,148,836,196.38
  5. Step 5: Solve for x
    x = 3,148,836,196.38/52,117.40
  6. Step 6: Final answer
    x = 60,418.14

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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.