Home / 91,547.21-137,341.51-49,426.47

Finding the Fourth Proportional to 91,547.21, 137,341.51 and 49,426.47

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Solution

The fourth proportional to 91,547.21, 137,341.51 and 49,426.47 is: 74,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,547.21 : 137,341.51 = 49,426.47 : x
  2. Step 2: Convert to fraction form
    91,547.21/137,341.51 = 49,426.47/x
  3. Step 3: Cross multiply
    91,547.21x = 137,341.51 × 49,426.47
  4. Step 4: Simplify right side
    91,547.21x = 6,788,305,900.20
  5. Step 5: Solve for x
    x = 6,788,305,900.20/91,547.21
  6. Step 6: Final answer
    x = 74,150.87

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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.