Home / 84,864.16-127,291.38-28,685.26

Finding the Fourth Proportional to 84,864.16, 127,291.38 and 28,685.26

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Solution

The fourth proportional to 84,864.16, 127,291.38 and 28,685.26 is: 43,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,864.16 : 127,291.38 = 28,685.26 : x
  2. Step 2: Convert to fraction form
    84,864.16/127,291.38 = 28,685.26/x
  3. Step 3: Cross multiply
    84,864.16x = 127,291.38 × 28,685.26
  4. Step 4: Simplify right side
    84,864.16x = 3,651,386,331.06
  5. Step 5: Solve for x
    x = 3,651,386,331.06/84,864.16
  6. Step 6: Final answer
    x = 43,026.25

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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.