Home / 67,029.12-92,612.16-55,831.68

Finding the Fourth Proportional to 67,029.12, 92,612.16 and 55,831.68

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Solution

The fourth proportional to 67,029.12, 92,612.16 and 55,831.68 is: 77,140.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,029.12 : 92,612.16 = 55,831.68 : x
  2. Step 2: Convert to fraction form
    67,029.12/92,612.16 = 55,831.68/x
  3. Step 3: Cross multiply
    67,029.12x = 92,612.16 × 55,831.68
  4. Step 4: Simplify right side
    67,029.12x = 5,170,692,481.23
  5. Step 5: Solve for x
    x = 5,170,692,481.23/67,029.12
  6. Step 6: Final answer
    x = 77,140.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.