Home / 84,741.28-127,147.82-42,599.16

Finding the Fourth Proportional to 84,741.28, 127,147.82 and 42,599.16

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Solution

The fourth proportional to 84,741.28, 127,147.82 and 42,599.16 is: 63,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,741.28 : 127,147.82 = 42,599.16 : x
  2. Step 2: Convert to fraction form
    84,741.28/127,147.82 = 42,599.16/x
  3. Step 3: Cross multiply
    84,741.28x = 127,147.82 × 42,599.16
  4. Step 4: Simplify right side
    84,741.28x = 5,416,390,327.83
  5. Step 5: Solve for x
    x = 5,416,390,327.83/84,741.28
  6. Step 6: Final answer
    x = 63,916.79

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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.