Home / 99,581.90-137,426.49-54,263.61

Finding the Fourth Proportional to 99,581.90, 137,426.49 and 54,263.61

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Solution

The fourth proportional to 99,581.90, 137,426.49 and 54,263.61 is: 74,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,581.90 : 137,426.49 = 54,263.61 : x
  2. Step 2: Convert to fraction form
    99,581.90/137,426.49 = 54,263.61/x
  3. Step 3: Cross multiply
    99,581.90x = 137,426.49 × 54,263.61
  4. Step 4: Simplify right side
    99,581.90x = 7,457,257,457.03
  5. Step 5: Solve for x
    x = 7,457,257,457.03/99,581.90
  6. Step 6: Final answer
    x = 74,885.68

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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.