Home / 60,128.19-82,961.97-38,881.89

Finding the Fourth Proportional to 60,128.19, 82,961.97 and 38,881.89

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Solution

The fourth proportional to 60,128.19, 82,961.97 and 38,881.89 is: 53,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,128.19 : 82,961.97 = 38,881.89 : x
  2. Step 2: Convert to fraction form
    60,128.19/82,961.97 = 38,881.89/x
  3. Step 3: Cross multiply
    60,128.19x = 82,961.97 × 38,881.89
  4. Step 4: Simplify right side
    60,128.19x = 3,225,718,191.72
  5. Step 5: Solve for x
    x = 3,225,718,191.72/60,128.19
  6. Step 6: Final answer
    x = 53,647.35

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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.