Home / 69,089.15-103,688.40-26,989.40

Finding the Fourth Proportional to 69,089.15, 103,688.40 and 26,989.40

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Solution

The fourth proportional to 69,089.15, 103,688.40 and 26,989.40 is: 40,505.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,089.15 : 103,688.40 = 26,989.40 : x
  2. Step 2: Convert to fraction form
    69,089.15/103,688.40 = 26,989.40/x
  3. Step 3: Cross multiply
    69,089.15x = 103,688.40 × 26,989.40
  4. Step 4: Simplify right side
    69,089.15x = 2,798,487,702.96
  5. Step 5: Solve for x
    x = 2,798,487,702.96/69,089.15
  6. Step 6: Final answer
    x = 40,505.46

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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.