Home / 88,176.10-121,683.90-47,890.64

Finding the Fourth Proportional to 88,176.10, 121,683.90 and 47,890.64

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Solution

The fourth proportional to 88,176.10, 121,683.90 and 47,890.64 is: 66,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,176.10 : 121,683.90 = 47,890.64 : x
  2. Step 2: Convert to fraction form
    88,176.10/121,683.90 = 47,890.64/x
  3. Step 3: Cross multiply
    88,176.10x = 121,683.90 × 47,890.64
  4. Step 4: Simplify right side
    88,176.10x = 5,827,520,560.65
  5. Step 5: Solve for x
    x = 5,827,520,560.65/88,176.10
  6. Step 6: Final answer
    x = 66,089.57

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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.