Home / 56,480.19-78,023.76-45,134.79

Finding the Fourth Proportional to 56,480.19, 78,023.76 and 45,134.79

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Solution

The fourth proportional to 56,480.19, 78,023.76 and 45,134.79 is: 62,350.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,480.19 : 78,023.76 = 45,134.79 : x
  2. Step 2: Convert to fraction form
    56,480.19/78,023.76 = 45,134.79/x
  3. Step 3: Cross multiply
    56,480.19x = 78,023.76 × 45,134.79
  4. Step 4: Simplify right side
    56,480.19x = 3,521,586,022.61
  5. Step 5: Solve for x
    x = 3,521,586,022.61/56,480.19
  6. Step 6: Final answer
    x = 62,350.82

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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.