Home / 52,311.08-78,465.17-19,031.76

Finding the Fourth Proportional to 52,311.08, 78,465.17 and 19,031.76

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Solution

The fourth proportional to 52,311.08, 78,465.17 and 19,031.76 is: 28,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,311.08 : 78,465.17 = 19,031.76 : x
  2. Step 2: Convert to fraction form
    52,311.08/78,465.17 = 19,031.76/x
  3. Step 3: Cross multiply
    52,311.08x = 78,465.17 × 19,031.76
  4. Step 4: Simplify right side
    52,311.08x = 1,493,330,331.38
  5. Step 5: Solve for x
    x = 1,493,330,331.38/52,311.08
  6. Step 6: Final answer
    x = 28,547.11

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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.