Home / 91,239.63-136,933.16-38,686.02

Finding the Fourth Proportional to 91,239.63, 136,933.16 and 38,686.02

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Solution

The fourth proportional to 91,239.63, 136,933.16 and 38,686.02 is: 58,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,239.63 : 136,933.16 = 38,686.02 : x
  2. Step 2: Convert to fraction form
    91,239.63/136,933.16 = 38,686.02/x
  3. Step 3: Cross multiply
    91,239.63x = 136,933.16 × 38,686.02
  4. Step 4: Simplify right side
    91,239.63x = 5,297,398,966.42
  5. Step 5: Solve for x
    x = 5,297,398,966.42/91,239.63
  6. Step 6: Final answer
    x = 58,060.29

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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.