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Finding the Fourth Proportional to 85,528.60, 127,947.30 and 73,970.20

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Solution

The fourth proportional to 85,528.60, 127,947.30 and 73,970.20 is: 110,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,528.60 : 127,947.30 = 73,970.20 : x
  2. Step 2: Convert to fraction form
    85,528.60/127,947.30 = 73,970.20/x
  3. Step 3: Cross multiply
    85,528.60x = 127,947.30 × 73,970.20
  4. Step 4: Simplify right side
    85,528.60x = 9,464,287,370.46
  5. Step 5: Solve for x
    x = 9,464,287,370.46/85,528.60
  6. Step 6: Final answer
    x = 110,656.40

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1.5x scale

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.