Home / 81,831.50-122,726.75-58,069.74

Finding the Fourth Proportional to 81,831.50, 122,726.75 and 58,069.74

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Solution

The fourth proportional to 81,831.50, 122,726.75 and 58,069.74 is: 87,090.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,831.50 : 122,726.75 = 58,069.74 : x
  2. Step 2: Convert to fraction form
    81,831.50/122,726.75 = 58,069.74/x
  3. Step 3: Cross multiply
    81,831.50x = 122,726.75 × 58,069.74
  4. Step 4: Simplify right side
    81,831.50x = 7,126,710,633.42
  5. Step 5: Solve for x
    x = 7,126,710,633.42/81,831.50
  6. Step 6: Final answer
    x = 87,090.07

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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.