Home / 91,308.04-136,715.94-59,639.68

Finding the Fourth Proportional to 91,308.04, 136,715.94 and 59,639.68

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Solution

The fourth proportional to 91,308.04, 136,715.94 and 59,639.68 is: 89,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,308.04 : 136,715.94 = 59,639.68 : x
  2. Step 2: Convert to fraction form
    91,308.04/136,715.94 = 59,639.68/x
  3. Step 3: Cross multiply
    91,308.04x = 136,715.94 × 59,639.68
  4. Step 4: Simplify right side
    91,308.04x = 8,153,694,912.50
  5. Step 5: Solve for x
    x = 8,153,694,912.50/91,308.04
  6. Step 6: Final answer
    x = 89,298.76

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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.