Home / 90,831.76-136,269.52-28,502.26

Finding the Fourth Proportional to 90,831.76, 136,269.52 and 28,502.26

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Solution

The fourth proportional to 90,831.76, 136,269.52 and 28,502.26 is: 42,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,831.76 : 136,269.52 = 28,502.26 : x
  2. Step 2: Convert to fraction form
    90,831.76/136,269.52 = 28,502.26/x
  3. Step 3: Cross multiply
    90,831.76x = 136,269.52 × 28,502.26
  4. Step 4: Simplify right side
    90,831.76x = 3,883,989,289.12
  5. Step 5: Solve for x
    x = 3,883,989,289.12/90,831.76
  6. Step 6: Final answer
    x = 42,760.26

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1.5x scale

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.