Home / 83,990.42-115,904.77-48,178.14

Finding the Fourth Proportional to 83,990.42, 115,904.77 and 48,178.14

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Solution

The fourth proportional to 83,990.42, 115,904.77 and 48,178.14 is: 66,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,990.42 : 115,904.77 = 48,178.14 : x
  2. Step 2: Convert to fraction form
    83,990.42/115,904.77 = 48,178.14/x
  3. Step 3: Cross multiply
    83,990.42x = 115,904.77 × 48,178.14
  4. Step 4: Simplify right side
    83,990.42x = 5,584,076,603.61
  5. Step 5: Solve for x
    x = 5,584,076,603.61/83,990.42
  6. Step 6: Final answer
    x = 66,484.69

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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.