Home / 91,730.25-137,617.02-28,547.40

Finding the Fourth Proportional to 91,730.25, 137,617.02 and 28,547.40

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Solution

The fourth proportional to 91,730.25, 137,617.02 and 28,547.40 is: 42,827.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,730.25 : 137,617.02 = 28,547.40 : x
  2. Step 2: Convert to fraction form
    91,730.25/137,617.02 = 28,547.40/x
  3. Step 3: Cross multiply
    91,730.25x = 137,617.02 × 28,547.40
  4. Step 4: Simplify right side
    91,730.25x = 3,928,608,116.75
  5. Step 5: Solve for x
    x = 3,928,608,116.75/91,730.25
  6. Step 6: Final answer
    x = 42,827.84

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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.