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Finding the Fourth Proportional to 57,159.36, 85,744.80 and 15,606.72

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Solution

The fourth proportional to 57,159.36, 85,744.80 and 15,606.72 is: 23,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,159.36 : 85,744.80 = 15,606.72 : x
  2. Step 2: Convert to fraction form
    57,159.36/85,744.80 = 15,606.72/x
  3. Step 3: Cross multiply
    57,159.36x = 85,744.80 × 15,606.72
  4. Step 4: Simplify right side
    57,159.36x = 1,338,195,085.06
  5. Step 5: Solve for x
    x = 1,338,195,085.06/57,159.36
  6. Step 6: Final answer
    x = 23,411.65

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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.