Home / 91,139.22-136,723.41-38,549.16

Finding the Fourth Proportional to 91,139.22, 136,723.41 and 38,549.16

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Solution

The fourth proportional to 91,139.22, 136,723.41 and 38,549.16 is: 57,829.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,139.22 : 136,723.41 = 38,549.16 : x
  2. Step 2: Convert to fraction form
    91,139.22/136,723.41 = 38,549.16/x
  3. Step 3: Cross multiply
    91,139.22x = 136,723.41 × 38,549.16
  4. Step 4: Simplify right side
    91,139.22x = 5,270,572,607.84
  5. Step 5: Solve for x
    x = 5,270,572,607.84/91,139.22
  6. Step 6: Final answer
    x = 57,829.91

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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.