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Finding the Fourth Proportional to 75,416.80, 112,930.80 and 59,864.80

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Solution

The fourth proportional to 75,416.80, 112,930.80 and 59,864.80 is: 89,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,416.80 : 112,930.80 = 59,864.80 : x
  2. Step 2: Convert to fraction form
    75,416.80/112,930.80 = 59,864.80/x
  3. Step 3: Cross multiply
    75,416.80x = 112,930.80 × 59,864.80
  4. Step 4: Simplify right side
    75,416.80x = 6,760,579,755.84
  5. Step 5: Solve for x
    x = 6,760,579,755.84/75,416.80
  6. Step 6: Final answer
    x = 89,642.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.