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Finding the Fourth Proportional to 63,712.68, 87,921.36 and 35,417.76

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Solution

The fourth proportional to 63,712.68, 87,921.36 and 35,417.76 is: 48,875.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,712.68 : 87,921.36 = 35,417.76 : x
  2. Step 2: Convert to fraction form
    63,712.68/87,921.36 = 35,417.76/x
  3. Step 3: Cross multiply
    63,712.68x = 87,921.36 × 35,417.76
  4. Step 4: Simplify right side
    63,712.68x = 3,113,977,627.35
  5. Step 5: Solve for x
    x = 3,113,977,627.35/63,712.68
  6. Step 6: Final answer
    x = 48,875.32

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