Home / 84,853.64-127,240.32-31,508.84

Finding the Fourth Proportional to 84,853.64, 127,240.32 and 31,508.84

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Solution

The fourth proportional to 84,853.64, 127,240.32 and 31,508.84 is: 47,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,853.64 : 127,240.32 = 31,508.84 : x
  2. Step 2: Convert to fraction form
    84,853.64/127,240.32 = 31,508.84/x
  3. Step 3: Cross multiply
    84,853.64x = 127,240.32 × 31,508.84
  4. Step 4: Simplify right side
    84,853.64x = 4,009,194,884.43
  5. Step 5: Solve for x
    x = 4,009,194,884.43/84,853.64
  6. Step 6: Final answer
    x = 47,248.35

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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.