Home / 52,689.17-79,041.05-21,517.13

Finding the Fourth Proportional to 52,689.17, 79,041.05 and 21,517.13

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Solution

The fourth proportional to 52,689.17, 79,041.05 and 21,517.13 is: 32,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,689.17 : 79,041.05 = 21,517.13 : x
  2. Step 2: Convert to fraction form
    52,689.17/79,041.05 = 21,517.13/x
  3. Step 3: Cross multiply
    52,689.17x = 79,041.05 × 21,517.13
  4. Step 4: Simplify right side
    52,689.17x = 1,700,736,045.40
  5. Step 5: Solve for x
    x = 1,700,736,045.40/52,689.17
  6. Step 6: Final answer
    x = 32,278.67

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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.