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Finding the Fourth Proportional to 71,656.96, 98,875.56 and 39,825.76

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Solution

The fourth proportional to 71,656.96, 98,875.56 and 39,825.76 is: 54,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,656.96 : 98,875.56 = 39,825.76 : x
  2. Step 2: Convert to fraction form
    71,656.96/98,875.56 = 39,825.76/x
  3. Step 3: Cross multiply
    71,656.96x = 98,875.56 × 39,825.76
  4. Step 4: Simplify right side
    71,656.96x = 3,937,794,322.43
  5. Step 5: Solve for x
    x = 3,937,794,322.43/71,656.96
  6. Step 6: Final answer
    x = 54,953.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.