Home / 70,332.16-105,464.20-25,979.80

Finding the Fourth Proportional to 70,332.16, 105,464.20 and 25,979.80

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Solution

The fourth proportional to 70,332.16, 105,464.20 and 25,979.80 is: 38,957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,332.16 : 105,464.20 = 25,979.80 : x
  2. Step 2: Convert to fraction form
    70,332.16/105,464.20 = 25,979.80/x
  3. Step 3: Cross multiply
    70,332.16x = 105,464.20 × 25,979.80
  4. Step 4: Simplify right side
    70,332.16x = 2,739,938,823.16
  5. Step 5: Solve for x
    x = 2,739,938,823.16/70,332.16
  6. Step 6: Final answer
    x = 38,957.13

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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.