Home / 72,159.25-99,515.29-45,304.26

Finding the Fourth Proportional to 72,159.25, 99,515.29 and 45,304.26

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Solution

The fourth proportional to 72,159.25, 99,515.29 and 45,304.26 is: 62,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,159.25 : 99,515.29 = 45,304.26 : x
  2. Step 2: Convert to fraction form
    72,159.25/99,515.29 = 45,304.26/x
  3. Step 3: Cross multiply
    72,159.25x = 99,515.29 × 45,304.26
  4. Step 4: Simplify right side
    72,159.25x = 4,508,466,832.06
  5. Step 5: Solve for x
    x = 4,508,466,832.06/72,159.25
  6. Step 6: Final answer
    x = 62,479.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.