Home / 84,853.08-127,278.40-28,681.20

Finding the Fourth Proportional to 84,853.08, 127,278.40 and 28,681.20

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Solution

The fourth proportional to 84,853.08, 127,278.40 and 28,681.20 is: 43,021.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,853.08 : 127,278.40 = 28,681.20 : x
  2. Step 2: Convert to fraction form
    84,853.08/127,278.40 = 28,681.20/x
  3. Step 3: Cross multiply
    84,853.08x = 127,278.40 × 28,681.20
  4. Step 4: Simplify right side
    84,853.08x = 3,650,497,246.08
  5. Step 5: Solve for x
    x = 3,650,497,246.08/84,853.08
  6. Step 6: Final answer
    x = 43,021.39

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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.