Home / 48,640.91-72,961.56-13,580.46

Finding the Fourth Proportional to 48,640.91, 72,961.56 and 13,580.46

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Solution

The fourth proportional to 48,640.91, 72,961.56 and 13,580.46 is: 20,370.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,640.91 : 72,961.56 = 13,580.46 : x
  2. Step 2: Convert to fraction form
    48,640.91/72,961.56 = 13,580.46/x
  3. Step 3: Cross multiply
    48,640.91x = 72,961.56 × 13,580.46
  4. Step 4: Simplify right side
    48,640.91x = 990,851,547.12
  5. Step 5: Solve for x
    x = 990,851,547.12/48,640.91
  6. Step 6: Final answer
    x = 20,370.75

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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.