Home / 99,022.50-136,658.25-56,580.12

Finding the Fourth Proportional to 99,022.50, 136,658.25 and 56,580.12

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Solution

The fourth proportional to 99,022.50, 136,658.25 and 56,580.12 is: 78,084.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,022.50 : 136,658.25 = 56,580.12 : x
  2. Step 2: Convert to fraction form
    99,022.50/136,658.25 = 56,580.12/x
  3. Step 3: Cross multiply
    99,022.50x = 136,658.25 × 56,580.12
  4. Step 4: Simplify right side
    99,022.50x = 7,732,140,183.99
  5. Step 5: Solve for x
    x = 7,732,140,183.99/99,022.50
  6. Step 6: Final answer
    x = 78,084.68

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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.