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Finding the Fourth Proportional to 101,779.67, 140,472.75 and 56,472.23

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Solution

The fourth proportional to 101,779.67, 140,472.75 and 56,472.23 is: 77,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,779.67 : 140,472.75 = 56,472.23 : x
  2. Step 2: Convert to fraction form
    101,779.67/140,472.75 = 56,472.23/x
  3. Step 3: Cross multiply
    101,779.67x = 140,472.75 × 56,472.23
  4. Step 4: Simplify right side
    101,779.67x = 7,932,809,446.73
  5. Step 5: Solve for x
    x = 7,932,809,446.73/101,779.67
  6. Step 6: Final answer
    x = 77,941.00

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1.5x scale

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.