Home / 85,081.36-127,612.29-22,756.72

Finding the Fourth Proportional to 85,081.36, 127,612.29 and 22,756.72

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Solution

The fourth proportional to 85,081.36, 127,612.29 and 22,756.72 is: 34,132.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,081.36 : 127,612.29 = 22,756.72 : x
  2. Step 2: Convert to fraction form
    85,081.36/127,612.29 = 22,756.72/x
  3. Step 3: Cross multiply
    85,081.36x = 127,612.29 × 22,756.72
  4. Step 4: Simplify right side
    85,081.36x = 2,904,037,152.09
  5. Step 5: Solve for x
    x = 2,904,037,152.09/85,081.36
  6. Step 6: Final answer
    x = 34,132.47

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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.