Home / 77,418.28-116,127.57-21,259.16

Finding the Fourth Proportional to 77,418.28, 116,127.57 and 21,259.16

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Solution

The fourth proportional to 77,418.28, 116,127.57 and 21,259.16 is: 31,888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,418.28 : 116,127.57 = 21,259.16 : x
  2. Step 2: Convert to fraction form
    77,418.28/116,127.57 = 21,259.16/x
  3. Step 3: Cross multiply
    77,418.28x = 116,127.57 × 21,259.16
  4. Step 4: Simplify right side
    77,418.28x = 2,468,774,591.04
  5. Step 5: Solve for x
    x = 2,468,774,591.04/77,418.28
  6. Step 6: Final answer
    x = 31,888.78

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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.