Home / 86,007.28-118,689.96-48,281.60

Finding the Fourth Proportional to 86,007.28, 118,689.96 and 48,281.60

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Solution

The fourth proportional to 86,007.28, 118,689.96 and 48,281.60 is: 66,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,007.28 : 118,689.96 = 48,281.60 : x
  2. Step 2: Convert to fraction form
    86,007.28/118,689.96 = 48,281.60/x
  3. Step 3: Cross multiply
    86,007.28x = 118,689.96 × 48,281.60
  4. Step 4: Simplify right side
    86,007.28x = 5,730,541,172.74
  5. Step 5: Solve for x
    x = 5,730,541,172.74/86,007.28
  6. Step 6: Final answer
    x = 66,628.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.