Home / 81,897.76-112,962.36-50,082.31

Finding the Fourth Proportional to 81,897.76, 112,962.36 and 50,082.31

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Solution

The fourth proportional to 81,897.76, 112,962.36 and 50,082.31 is: 69,079.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,897.76 : 112,962.36 = 50,082.31 : x
  2. Step 2: Convert to fraction form
    81,897.76/112,962.36 = 50,082.31/x
  3. Step 3: Cross multiply
    81,897.76x = 112,962.36 × 50,082.31
  4. Step 4: Simplify right side
    81,897.76x = 5,657,415,931.85
  5. Step 5: Solve for x
    x = 5,657,415,931.85/81,897.76
  6. Step 6: Final answer
    x = 69,079.01

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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.