Home / 85,373.07-127,955.92-60,420.42

Finding the Fourth Proportional to 85,373.07, 127,955.92 and 60,420.42

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Solution

The fourth proportional to 85,373.07, 127,955.92 and 60,420.42 is: 90,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,373.07 : 127,955.92 = 60,420.42 : x
  2. Step 2: Convert to fraction form
    85,373.07/127,955.92 = 60,420.42/x
  3. Step 3: Cross multiply
    85,373.07x = 127,955.92 × 60,420.42
  4. Step 4: Simplify right side
    85,373.07x = 7,731,150,427.89
  5. Step 5: Solve for x
    x = 7,731,150,427.89/85,373.07
  6. Step 6: Final answer
    x = 90,557.25

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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.