Home / 91,140.22-136,724.91-38,550.16

Finding the Fourth Proportional to 91,140.22, 136,724.91 and 38,550.16

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Solution

The fourth proportional to 91,140.22, 136,724.91 and 38,550.16 is: 57,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,140.22 : 136,724.91 = 38,550.16 : x
  2. Step 2: Convert to fraction form
    91,140.22/136,724.91 = 38,550.16/x
  3. Step 3: Cross multiply
    91,140.22x = 136,724.91 × 38,550.16
  4. Step 4: Simplify right side
    91,140.22x = 5,270,767,156.49
  5. Step 5: Solve for x
    x = 5,270,767,156.49/91,140.22
  6. Step 6: Final answer
    x = 57,831.41

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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.