Home / 96,985.80-133,820.35-56,691.77

Finding the Fourth Proportional to 96,985.80, 133,820.35 and 56,691.77

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Solution

The fourth proportional to 96,985.80, 133,820.35 and 56,691.77 is: 78,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,985.80 : 133,820.35 = 56,691.77 : x
  2. Step 2: Convert to fraction form
    96,985.80/133,820.35 = 56,691.77/x
  3. Step 3: Cross multiply
    96,985.80x = 133,820.35 × 56,691.77
  4. Step 4: Simplify right side
    96,985.80x = 7,586,511,692.69
  5. Step 5: Solve for x
    x = 7,586,511,692.69/96,985.80
  6. Step 6: Final answer
    x = 78,222.91

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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.