Home / 45,039.69-67,559.40-31,657.59

Finding the Fourth Proportional to 45,039.69, 67,559.40 and 31,657.59

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Solution

The fourth proportional to 45,039.69, 67,559.40 and 31,657.59 is: 47,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,039.69 : 67,559.40 = 31,657.59 : x
  2. Step 2: Convert to fraction form
    45,039.69/67,559.40 = 31,657.59/x
  3. Step 3: Cross multiply
    45,039.69x = 67,559.40 × 31,657.59
  4. Step 4: Simplify right side
    45,039.69x = 2,138,767,785.85
  5. Step 5: Solve for x
    x = 2,138,767,785.85/45,039.69
  6. Step 6: Final answer
    x = 47,486.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.