Home / 115,642.42-173,489.15-49,139.40

Finding the Fourth Proportional to 115,642.42, 173,489.15 and 49,139.40

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Solution

The fourth proportional to 115,642.42, 173,489.15 and 49,139.40 is: 73,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,642.42 : 173,489.15 = 49,139.40 : x
  2. Step 2: Convert to fraction form
    115,642.42/173,489.15 = 49,139.40/x
  3. Step 3: Cross multiply
    115,642.42x = 173,489.15 × 49,139.40
  4. Step 4: Simplify right side
    115,642.42x = 8,525,152,737.51
  5. Step 5: Solve for x
    x = 8,525,152,737.51/115,642.42
  6. Step 6: Final answer
    x = 73,719.94

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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.