Home / 52,207.77-72,013.95-30,972

Finding the Fourth Proportional to 52,207.77, 72,013.95 and 30,972

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Solution

The fourth proportional to 52,207.77, 72,013.95 and 30,972 is: 42,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,207.77 : 72,013.95 = 30,972 : x
  2. Step 2: Convert to fraction form
    52,207.77/72,013.95 = 30,972/x
  3. Step 3: Cross multiply
    52,207.77x = 72,013.95 × 30,972
  4. Step 4: Simplify right side
    52,207.77x = 2,230,416,059.40
  5. Step 5: Solve for x
    x = 2,230,416,059.40/52,207.77
  6. Step 6: Final answer
    x = 42,721.92

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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.