Home / 79,430.32-109,711.56-59,376.75

Finding the Fourth Proportional to 79,430.32, 109,711.56 and 59,376.75

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Solution

The fourth proportional to 79,430.32, 109,711.56 and 59,376.75 is: 82,012.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,430.32 : 109,711.56 = 59,376.75 : x
  2. Step 2: Convert to fraction form
    79,430.32/109,711.56 = 59,376.75/x
  3. Step 3: Cross multiply
    79,430.32x = 109,711.56 × 59,376.75
  4. Step 4: Simplify right side
    79,430.32x = 6,514,315,870.23
  5. Step 5: Solve for x
    x = 6,514,315,870.23/79,430.32
  6. Step 6: Final answer
    x = 82,012.96

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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.