Home / 91,788.48-137,722.18-49,698.63

Finding the Fourth Proportional to 91,788.48, 137,722.18 and 49,698.63

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Solution

The fourth proportional to 91,788.48, 137,722.18 and 49,698.63 is: 74,569.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,788.48 : 137,722.18 = 49,698.63 : x
  2. Step 2: Convert to fraction form
    91,788.48/137,722.18 = 49,698.63/x
  3. Step 3: Cross multiply
    91,788.48x = 137,722.18 × 49,698.63
  4. Step 4: Simplify right side
    91,788.48x = 6,844,603,666.61
  5. Step 5: Solve for x
    x = 6,844,603,666.61/91,788.48
  6. Step 6: Final answer
    x = 74,569.31

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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.