Home / 61,931.38-92,868.72-19,803.28

Finding the Fourth Proportional to 61,931.38, 92,868.72 and 19,803.28

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Solution

The fourth proportional to 61,931.38, 92,868.72 and 19,803.28 is: 29,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,931.38 : 92,868.72 = 19,803.28 : x
  2. Step 2: Convert to fraction form
    61,931.38/92,868.72 = 19,803.28/x
  3. Step 3: Cross multiply
    61,931.38x = 92,868.72 × 19,803.28
  4. Step 4: Simplify right side
    61,931.38x = 1,839,105,265.40
  5. Step 5: Solve for x
    x = 1,839,105,265.40/61,931.38
  6. Step 6: Final answer
    x = 29,695.85

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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.