Home / 57,253.86-78,970.35-55,327.14

Finding the Fourth Proportional to 57,253.86, 78,970.35 and 55,327.14

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Solution

The fourth proportional to 57,253.86, 78,970.35 and 55,327.14 is: 76,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,253.86 : 78,970.35 = 55,327.14 : x
  2. Step 2: Convert to fraction form
    57,253.86/78,970.35 = 55,327.14/x
  3. Step 3: Cross multiply
    57,253.86x = 78,970.35 × 55,327.14
  4. Step 4: Simplify right side
    57,253.86x = 4,369,203,610.30
  5. Step 5: Solve for x
    x = 4,369,203,610.30/57,253.86
  6. Step 6: Final answer
    x = 76,312.82

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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.