Home / 91,708.47-137,602.31-49,618.21

Finding the Fourth Proportional to 91,708.47, 137,602.31 and 49,618.21

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Solution

The fourth proportional to 91,708.47, 137,602.31 and 49,618.21 is: 74,448.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,708.47 : 137,602.31 = 49,618.21 : x
  2. Step 2: Convert to fraction form
    91,708.47/137,602.31 = 49,618.21/x
  3. Step 3: Cross multiply
    91,708.47x = 137,602.31 × 49,618.21
  4. Step 4: Simplify right side
    91,708.47x = 6,827,580,314.07
  5. Step 5: Solve for x
    x = 6,827,580,314.07/91,708.47
  6. Step 6: Final answer
    x = 74,448.74

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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.