Home / 88,029.96-121,468.32-49,779.33

Finding the Fourth Proportional to 88,029.96, 121,468.32 and 49,779.33

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Solution

The fourth proportional to 88,029.96, 121,468.32 and 49,779.33 is: 68,688.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,029.96 : 121,468.32 = 49,779.33 : x
  2. Step 2: Convert to fraction form
    88,029.96/121,468.32 = 49,779.33/x
  3. Step 3: Cross multiply
    88,029.96x = 121,468.32 × 49,779.33
  4. Step 4: Simplify right side
    88,029.96x = 6,046,611,585.83
  5. Step 5: Solve for x
    x = 6,046,611,585.83/88,029.96
  6. Step 6: Final answer
    x = 68,688.11

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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.