Home / 68,688.30-103,032.45-53,117.10

Finding the Fourth Proportional to 68,688.30, 103,032.45 and 53,117.10

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Solution

The fourth proportional to 68,688.30, 103,032.45 and 53,117.10 is: 79,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688.30 : 103,032.45 = 53,117.10 : x
  2. Step 2: Convert to fraction form
    68,688.30/103,032.45 = 53,117.10/x
  3. Step 3: Cross multiply
    68,688.30x = 103,032.45 × 53,117.10
  4. Step 4: Simplify right side
    68,688.30x = 5,472,784,949.90
  5. Step 5: Solve for x
    x = 5,472,784,949.90/68,688.30
  6. Step 6: Final answer
    x = 79,675.65

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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.