Home / 40,875.75-61,280.24-21,159.99

Finding the Fourth Proportional to 40,875.75, 61,280.24 and 21,159.99

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Solution

The fourth proportional to 40,875.75, 61,280.24 and 21,159.99 is: 31,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,875.75 : 61,280.24 = 21,159.99 : x
  2. Step 2: Convert to fraction form
    40,875.75/61,280.24 = 21,159.99/x
  3. Step 3: Cross multiply
    40,875.75x = 61,280.24 × 21,159.99
  4. Step 4: Simplify right side
    40,875.75x = 1,296,689,159.80
  5. Step 5: Solve for x
    x = 1,296,689,159.80/40,875.75
  6. Step 6: Final answer
    x = 31,722.70

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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.