Home / 91,925.04-126,870.24-56,135.80

Finding the Fourth Proportional to 91,925.04, 126,870.24 and 56,135.80

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Solution

The fourth proportional to 91,925.04, 126,870.24 and 56,135.80 is: 77,475.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,925.04 : 126,870.24 = 56,135.80 : x
  2. Step 2: Convert to fraction form
    91,925.04/126,870.24 = 56,135.80/x
  3. Step 3: Cross multiply
    91,925.04x = 126,870.24 × 56,135.80
  4. Step 4: Simplify right side
    91,925.04x = 7,121,962,418.59
  5. Step 5: Solve for x
    x = 7,121,962,418.59/91,925.04
  6. Step 6: Final answer
    x = 77,475.76

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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.