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Finding the Fourth Proportional to 85,317.76, 127,976.64 and 22,988.26

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Solution

The fourth proportional to 85,317.76, 127,976.64 and 22,988.26 is: 34,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,317.76 : 127,976.64 = 22,988.26 : x
  2. Step 2: Convert to fraction form
    85,317.76/127,976.64 = 22,988.26/x
  3. Step 3: Cross multiply
    85,317.76x = 127,976.64 × 22,988.26
  4. Step 4: Simplify right side
    85,317.76x = 2,941,960,274.25
  5. Step 5: Solve for x
    x = 2,941,960,274.25/85,317.76
  6. Step 6: Final answer
    x = 34,482.39

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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.