Home / 62,138.18-85,756.65-38,278.82

Finding the Fourth Proportional to 62,138.18, 85,756.65 and 38,278.82

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Solution

The fourth proportional to 62,138.18, 85,756.65 and 38,278.82 is: 52,828.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,138.18 : 85,756.65 = 38,278.82 : x
  2. Step 2: Convert to fraction form
    62,138.18/85,756.65 = 38,278.82/x
  3. Step 3: Cross multiply
    62,138.18x = 85,756.65 × 38,278.82
  4. Step 4: Simplify right side
    62,138.18x = 3,282,663,369.15
  5. Step 5: Solve for x
    x = 3,282,663,369.15/62,138.18
  6. Step 6: Final answer
    x = 52,828.44

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1.5x scale

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.