Home / 85,903.14-118,546.08-48,178.20

Finding the Fourth Proportional to 85,903.14, 118,546.08 and 48,178.20

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Solution

The fourth proportional to 85,903.14, 118,546.08 and 48,178.20 is: 66,485.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,903.14 : 118,546.08 = 48,178.20 : x
  2. Step 2: Convert to fraction form
    85,903.14/118,546.08 = 48,178.20/x
  3. Step 3: Cross multiply
    85,903.14x = 118,546.08 × 48,178.20
  4. Step 4: Simplify right side
    85,903.14x = 5,711,336,751.46
  5. Step 5: Solve for x
    x = 5,711,336,751.46/85,903.14
  6. Step 6: Final answer
    x = 66,485.77

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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.