Home / 57,126.24-78,831.12-31,970.88

Finding the Fourth Proportional to 57,126.24, 78,831.12 and 31,970.88

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Solution

The fourth proportional to 57,126.24, 78,831.12 and 31,970.88 is: 44,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,126.24 : 78,831.12 = 31,970.88 : x
  2. Step 2: Convert to fraction form
    57,126.24/78,831.12 = 31,970.88/x
  3. Step 3: Cross multiply
    57,126.24x = 78,831.12 × 31,970.88
  4. Step 4: Simplify right side
    57,126.24x = 2,520,300,277.79
  5. Step 5: Solve for x
    x = 2,520,300,277.79/57,126.24
  6. Step 6: Final answer
    x = 44,118.08

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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.