Home / 85,154.81-117,501.59-48,359.75

Finding the Fourth Proportional to 85,154.81, 117,501.59 and 48,359.75

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Solution

The fourth proportional to 85,154.81, 117,501.59 and 48,359.75 is: 66,729.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,154.81 : 117,501.59 = 48,359.75 : x
  2. Step 2: Convert to fraction form
    85,154.81/117,501.59 = 48,359.75/x
  3. Step 3: Cross multiply
    85,154.81x = 117,501.59 × 48,359.75
  4. Step 4: Simplify right side
    85,154.81x = 5,682,347,275.20
  5. Step 5: Solve for x
    x = 5,682,347,275.20/85,154.81
  6. Step 6: Final answer
    x = 66,729.61

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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.