Home / 99,364.44-137,142.63-56,344.79

Finding the Fourth Proportional to 99,364.44, 137,142.63 and 56,344.79

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Solution

The fourth proportional to 99,364.44, 137,142.63 and 56,344.79 is: 77,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,364.44 : 137,142.63 = 56,344.79 : x
  2. Step 2: Convert to fraction form
    99,364.44/137,142.63 = 56,344.79/x
  3. Step 3: Cross multiply
    99,364.44x = 137,142.63 × 56,344.79
  4. Step 4: Simplify right side
    99,364.44x = 7,727,272,001.68
  5. Step 5: Solve for x
    x = 7,727,272,001.68/99,364.44
  6. Step 6: Final answer
    x = 77,766.98

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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.