Home / 79,445.07-109,641.80-45,446.81

Finding the Fourth Proportional to 79,445.07, 109,641.80 and 45,446.81

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Solution

The fourth proportional to 79,445.07, 109,641.80 and 45,446.81 is: 62,720.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,445.07 : 109,641.80 = 45,446.81 : x
  2. Step 2: Convert to fraction form
    79,445.07/109,641.80 = 45,446.81/x
  3. Step 3: Cross multiply
    79,445.07x = 109,641.80 × 45,446.81
  4. Step 4: Simplify right side
    79,445.07x = 4,982,869,618.07
  5. Step 5: Solve for x
    x = 4,982,869,618.07/79,445.07
  6. Step 6: Final answer
    x = 62,720.94

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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.