Home / 84,742.16-127,114.11-25,578.32

Finding the Fourth Proportional to 84,742.16, 127,114.11 and 25,578.32

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Solution

The fourth proportional to 84,742.16, 127,114.11 and 25,578.32 is: 38,367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,742.16 : 127,114.11 = 25,578.32 : x
  2. Step 2: Convert to fraction form
    84,742.16/127,114.11 = 25,578.32/x
  3. Step 3: Cross multiply
    84,742.16x = 127,114.11 × 25,578.32
  4. Step 4: Simplify right side
    84,742.16x = 3,251,364,746.52
  5. Step 5: Solve for x
    x = 3,251,364,746.52/84,742.16
  6. Step 6: Final answer
    x = 38,367.74

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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.