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Finding the Fourth Proportional to 91,351.84, 126,045.84 and 53,616.16

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Solution

The fourth proportional to 91,351.84, 126,045.84 and 53,616.16 is: 73,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,351.84 : 126,045.84 = 53,616.16 : x
  2. Step 2: Convert to fraction form
    91,351.84/126,045.84 = 53,616.16/x
  3. Step 3: Cross multiply
    91,351.84x = 126,045.84 × 53,616.16
  4. Step 4: Simplify right side
    91,351.84x = 6,758,093,924.77
  5. Step 5: Solve for x
    x = 6,758,093,924.77/91,351.84
  6. Step 6: Final answer
    x = 73,978.74

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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.