Home / 91,690.48-137,537.64-29,360.80

Finding the Fourth Proportional to 91,690.48, 137,537.64 and 29,360.80

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Solution

The fourth proportional to 91,690.48, 137,537.64 and 29,360.80 is: 44,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,690.48 : 137,537.64 = 29,360.80 : x
  2. Step 2: Convert to fraction form
    91,690.48/137,537.64 = 29,360.80/x
  3. Step 3: Cross multiply
    91,690.48x = 137,537.64 × 29,360.80
  4. Step 4: Simplify right side
    91,690.48x = 4,038,215,140.51
  5. Step 5: Solve for x
    x = 4,038,215,140.51/91,690.48
  6. Step 6: Final answer
    x = 44,041.81

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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.