Home / 79,302.54-109,439.02-43,490.40

Finding the Fourth Proportional to 79,302.54, 109,439.02 and 43,490.40

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Solution

The fourth proportional to 79,302.54, 109,439.02 and 43,490.40 is: 60,017.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,302.54 : 109,439.02 = 43,490.40 : x
  2. Step 2: Convert to fraction form
    79,302.54/109,439.02 = 43,490.40/x
  3. Step 3: Cross multiply
    79,302.54x = 109,439.02 × 43,490.40
  4. Step 4: Simplify right side
    79,302.54x = 4,759,546,755.41
  5. Step 5: Solve for x
    x = 4,759,546,755.41/79,302.54
  6. Step 6: Final answer
    x = 60,017.58

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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.