Home / 91,531.89-137,192.40-35,347.23

Finding the Fourth Proportional to 91,531.89, 137,192.40 and 35,347.23

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Solution

The fourth proportional to 91,531.89, 137,192.40 and 35,347.23 is: 52,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,531.89 : 137,192.40 = 35,347.23 : x
  2. Step 2: Convert to fraction form
    91,531.89/137,192.40 = 35,347.23/x
  3. Step 3: Cross multiply
    91,531.89x = 137,192.40 × 35,347.23
  4. Step 4: Simplify right side
    91,531.89x = 4,849,371,317.05
  5. Step 5: Solve for x
    x = 4,849,371,317.05/91,531.89
  6. Step 6: Final answer
    x = 52,980.13

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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.