Home / 91,238.63-136,931.66-38,685.02

Finding the Fourth Proportional to 91,238.63, 136,931.66 and 38,685.02

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Solution

The fourth proportional to 91,238.63, 136,931.66 and 38,685.02 is: 58,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,238.63 : 136,931.66 = 38,685.02 : x
  2. Step 2: Convert to fraction form
    91,238.63/136,931.66 = 38,685.02/x
  3. Step 3: Cross multiply
    91,238.63x = 136,931.66 × 38,685.02
  4. Step 4: Simplify right side
    91,238.63x = 5,297,203,127.65
  5. Step 5: Solve for x
    x = 5,297,203,127.65/91,238.63
  6. Step 6: Final answer
    x = 58,058.78

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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.