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Finding the Fourth Proportional to 43,153.78, 64,729.16 and 15,073.74

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Solution

The fourth proportional to 43,153.78, 64,729.16 and 15,073.74 is: 22,610.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,153.78 : 64,729.16 = 15,073.74 : x
  2. Step 2: Convert to fraction form
    43,153.78/64,729.16 = 15,073.74/x
  3. Step 3: Cross multiply
    43,153.78x = 64,729.16 × 15,073.74
  4. Step 4: Simplify right side
    43,153.78x = 975,710,528.26
  5. Step 5: Solve for x
    x = 975,710,528.26/43,153.78
  6. Step 6: Final answer
    x = 22,610.08

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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.