Home / 67,831.20-101,746.80-57,808.80

Finding the Fourth Proportional to 67,831.20, 101,746.80 and 57,808.80

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Solution

The fourth proportional to 67,831.20, 101,746.80 and 57,808.80 is: 86,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,831.20 : 101,746.80 = 57,808.80 : x
  2. Step 2: Convert to fraction form
    67,831.20/101,746.80 = 57,808.80/x
  3. Step 3: Cross multiply
    67,831.20x = 101,746.80 × 57,808.80
  4. Step 4: Simplify right side
    67,831.20x = 5,881,860,411.84
  5. Step 5: Solve for x
    x = 5,881,860,411.84/67,831.20
  6. Step 6: Final answer
    x = 86,713.20

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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.