Home / 42,775.28-64,173.84-17,807.04

Finding the Fourth Proportional to 42,775.28, 64,173.84 and 17,807.04

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Solution

The fourth proportional to 42,775.28, 64,173.84 and 17,807.04 is: 26,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,775.28 : 64,173.84 = 17,807.04 : x
  2. Step 2: Convert to fraction form
    42,775.28/64,173.84 = 17,807.04/x
  3. Step 3: Cross multiply
    42,775.28x = 64,173.84 × 17,807.04
  4. Step 4: Simplify right side
    42,775.28x = 1,142,746,135.83
  5. Step 5: Solve for x
    x = 1,142,746,135.83/42,775.28
  6. Step 6: Final answer
    x = 26,715.11

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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.