Home / 69,071.72-95,319.11-40,779.23

Finding the Fourth Proportional to 69,071.72, 95,319.11 and 40,779.23

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Solution

The fourth proportional to 69,071.72, 95,319.11 and 40,779.23 is: 56,275.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,071.72 : 95,319.11 = 40,779.23 : x
  2. Step 2: Convert to fraction form
    69,071.72/95,319.11 = 40,779.23/x
  3. Step 3: Cross multiply
    69,071.72x = 95,319.11 × 40,779.23
  4. Step 4: Simplify right side
    69,071.72x = 3,887,039,535.44
  5. Step 5: Solve for x
    x = 3,887,039,535.44/69,071.72
  6. Step 6: Final answer
    x = 56,275.42

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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.