Home / 57,122.13-85,534.16-45,967.89

Finding the Fourth Proportional to 57,122.13, 85,534.16 and 45,967.89

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Solution

The fourth proportional to 57,122.13, 85,534.16 and 45,967.89 is: 68,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,122.13 : 85,534.16 = 45,967.89 : x
  2. Step 2: Convert to fraction form
    57,122.13/85,534.16 = 45,967.89/x
  3. Step 3: Cross multiply
    57,122.13x = 85,534.16 × 45,967.89
  4. Step 4: Simplify right side
    57,122.13x = 3,931,824,628.28
  5. Step 5: Solve for x
    x = 3,931,824,628.28/57,122.13
  6. Step 6: Final answer
    x = 68,831.90

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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.