Home / 52,019.17-77,981.91-18,715.82

Finding the Fourth Proportional to 52,019.17, 77,981.91 and 18,715.82

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Solution

The fourth proportional to 52,019.17, 77,981.91 and 18,715.82 is: 28,056.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,019.17 : 77,981.91 = 18,715.82 : x
  2. Step 2: Convert to fraction form
    52,019.17/77,981.91 = 18,715.82/x
  3. Step 3: Cross multiply
    52,019.17x = 77,981.91 × 18,715.82
  4. Step 4: Simplify right side
    52,019.17x = 1,459,495,390.82
  5. Step 5: Solve for x
    x = 1,459,495,390.82/52,019.17
  6. Step 6: Final answer
    x = 28,056.88

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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.