Home / 51,916.52-71,645.55-30,697.76

Finding the Fourth Proportional to 51,916.52, 71,645.55 and 30,697.76

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Solution

The fourth proportional to 51,916.52, 71,645.55 and 30,697.76 is: 42,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,916.52 : 71,645.55 = 30,697.76 : x
  2. Step 2: Convert to fraction form
    51,916.52/71,645.55 = 30,697.76/x
  3. Step 3: Cross multiply
    51,916.52x = 71,645.55 × 30,697.76
  4. Step 4: Simplify right side
    51,916.52x = 2,199,357,898.97
  5. Step 5: Solve for x
    x = 2,199,357,898.97/51,916.52
  6. Step 6: Final answer
    x = 42,363.35

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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.