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Finding the Fourth Proportional to 85,823.44, 128,527.30 and 43,592.44

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Solution

The fourth proportional to 85,823.44, 128,527.30 and 43,592.44 is: 65,283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,823.44 : 128,527.30 = 43,592.44 : x
  2. Step 2: Convert to fraction form
    85,823.44/128,527.30 = 43,592.44/x
  3. Step 3: Cross multiply
    85,823.44x = 128,527.30 × 43,592.44
  4. Step 4: Simplify right side
    85,823.44x = 5,602,818,613.61
  5. Step 5: Solve for x
    x = 5,602,818,613.61/85,823.44
  6. Step 6: Final answer
    x = 65,283.08

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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.