Home / 77,380.96-106,779.12-52,264.48

Finding the Fourth Proportional to 77,380.96, 106,779.12 and 52,264.48

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Solution

The fourth proportional to 77,380.96, 106,779.12 and 52,264.48 is: 72,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,380.96 : 106,779.12 = 52,264.48 : x
  2. Step 2: Convert to fraction form
    77,380.96/106,779.12 = 52,264.48/x
  3. Step 3: Cross multiply
    77,380.96x = 106,779.12 × 52,264.48
  4. Step 4: Simplify right side
    77,380.96x = 5,580,755,181.66
  5. Step 5: Solve for x
    x = 5,580,755,181.66/77,380.96
  6. Step 6: Final answer
    x = 72,120.52

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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.