Home / 53,320.64-79,967.04-15,870.56

Finding the Fourth Proportional to 53,320.64, 79,967.04 and 15,870.56

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Solution

The fourth proportional to 53,320.64, 79,967.04 and 15,870.56 is: 23,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,320.64 : 79,967.04 = 15,870.56 : x
  2. Step 2: Convert to fraction form
    53,320.64/79,967.04 = 15,870.56/x
  3. Step 3: Cross multiply
    53,320.64x = 79,967.04 × 15,870.56
  4. Step 4: Simplify right side
    53,320.64x = 1,269,121,706.34
  5. Step 5: Solve for x
    x = 1,269,121,706.34/53,320.64
  6. Step 6: Final answer
    x = 23,801.70

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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.