Home / 145,074.17-217,586.18-38,458.82

Finding the Fourth Proportional to 145,074.17, 217,586.18 and 38,458.82

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Solution

The fourth proportional to 145,074.17, 217,586.18 and 38,458.82 is: 57,681.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,074.17 : 217,586.18 = 38,458.82 : x
  2. Step 2: Convert to fraction form
    145,074.17/217,586.18 = 38,458.82/x
  3. Step 3: Cross multiply
    145,074.17x = 217,586.18 × 38,458.82
  4. Step 4: Simplify right side
    145,074.17x = 8,368,108,371.22
  5. Step 5: Solve for x
    x = 8,368,108,371.22/145,074.17
  6. Step 6: Final answer
    x = 57,681.59

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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.