Home / 40,139.64-60,248.34-19,377.72

Finding the Fourth Proportional to 40,139.64, 60,248.34 and 19,377.72

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Solution

The fourth proportional to 40,139.64, 60,248.34 and 19,377.72 is: 29,085.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.64 : 60,248.34 = 19,377.72 : x
  2. Step 2: Convert to fraction form
    40,139.64/60,248.34 = 19,377.72/x
  3. Step 3: Cross multiply
    40,139.64x = 60,248.34 × 19,377.72
  4. Step 4: Simplify right side
    40,139.64x = 1,167,475,462.98
  5. Step 5: Solve for x
    x = 1,167,475,462.98/40,139.64
  6. Step 6: Final answer
    x = 29,085.35

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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.