Home / 91,962.51-137,828.34-39,310.08

Finding the Fourth Proportional to 91,962.51, 137,828.34 and 39,310.08

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Solution

The fourth proportional to 91,962.51, 137,828.34 and 39,310.08 is: 58,915.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,962.51 : 137,828.34 = 39,310.08 : x
  2. Step 2: Convert to fraction form
    91,962.51/137,828.34 = 39,310.08/x
  3. Step 3: Cross multiply
    91,962.51x = 137,828.34 × 39,310.08
  4. Step 4: Simplify right side
    91,962.51x = 5,418,043,071.67
  5. Step 5: Solve for x
    x = 5,418,043,071.67/91,962.51
  6. Step 6: Final answer
    x = 58,915.78

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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.