Home / 91,077.72-136,631.16-38,487.72

Finding the Fourth Proportional to 91,077.72, 136,631.16 and 38,487.72

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Solution

The fourth proportional to 91,077.72, 136,631.16 and 38,487.72 is: 57,737.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,077.72 : 136,631.16 = 38,487.72 : x
  2. Step 2: Convert to fraction form
    91,077.72/136,631.16 = 38,487.72/x
  3. Step 3: Cross multiply
    91,077.72x = 136,631.16 × 38,487.72
  4. Step 4: Simplify right side
    91,077.72x = 5,258,621,829.36
  5. Step 5: Solve for x
    x = 5,258,621,829.36/91,077.72
  6. Step 6: Final answer
    x = 57,737.74

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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.