Home / 101,861.22-140,565.80-56,539.08

Finding the Fourth Proportional to 101,861.22, 140,565.80 and 56,539.08

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Solution

The fourth proportional to 101,861.22, 140,565.80 and 56,539.08 is: 78,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,861.22 : 140,565.80 = 56,539.08 : x
  2. Step 2: Convert to fraction form
    101,861.22/140,565.80 = 56,539.08/x
  3. Step 3: Cross multiply
    101,861.22x = 140,565.80 × 56,539.08
  4. Step 4: Simplify right side
    101,861.22x = 7,947,461,011.46
  5. Step 5: Solve for x
    x = 7,947,461,011.46/101,861.22
  6. Step 6: Final answer
    x = 78,022.44

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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.