Home / 91,821.76-137,709.93-25,258.66

Finding the Fourth Proportional to 91,821.76, 137,709.93 and 25,258.66

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Solution

The fourth proportional to 91,821.76, 137,709.93 and 25,258.66 is: 37,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,821.76 : 137,709.93 = 25,258.66 : x
  2. Step 2: Convert to fraction form
    91,821.76/137,709.93 = 25,258.66/x
  3. Step 3: Cross multiply
    91,821.76x = 137,709.93 × 25,258.66
  4. Step 4: Simplify right side
    91,821.76x = 3,478,368,300.49
  5. Step 5: Solve for x
    x = 3,478,368,300.49/91,821.76
  6. Step 6: Final answer
    x = 37,881.74

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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.