Home / 42,156.62-63,266.08-19,970.02

Finding the Fourth Proportional to 42,156.62, 63,266.08 and 19,970.02

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Solution

The fourth proportional to 42,156.62, 63,266.08 and 19,970.02 is: 29,969.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,156.62 : 63,266.08 = 19,970.02 : x
  2. Step 2: Convert to fraction form
    42,156.62/63,266.08 = 19,970.02/x
  3. Step 3: Cross multiply
    42,156.62x = 63,266.08 × 19,970.02
  4. Step 4: Simplify right side
    42,156.62x = 1,263,424,882.92
  5. Step 5: Solve for x
    x = 1,263,424,882.92/42,156.62
  6. Step 6: Final answer
    x = 29,969.79

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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.