Home / 77,158.40-106,479.36-45,327.80

Finding the Fourth Proportional to 77,158.40, 106,479.36 and 45,327.80

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Solution

The fourth proportional to 77,158.40, 106,479.36 and 45,327.80 is: 62,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,158.40 : 106,479.36 = 45,327.80 : x
  2. Step 2: Convert to fraction form
    77,158.40/106,479.36 = 45,327.80/x
  3. Step 3: Cross multiply
    77,158.40x = 106,479.36 × 45,327.80
  4. Step 4: Simplify right side
    77,158.40x = 4,826,475,134.21
  5. Step 5: Solve for x
    x = 4,826,475,134.21/77,158.40
  6. Step 6: Final answer
    x = 62,552.82

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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.