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Finding the Fourth Proportional to 85,063, 127,551.60 and 49,535.80

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Solution

The fourth proportional to 85,063, 127,551.60 and 49,535.80 is: 74,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,063 : 127,551.60 = 49,535.80 : x
  2. Step 2: Convert to fraction form
    85,063/127,551.60 = 49,535.80/x
  3. Step 3: Cross multiply
    85,063x = 127,551.60 × 49,535.80
  4. Step 4: Simplify right side
    85,063x = 6,318,370,547.28
  5. Step 5: Solve for x
    x = 6,318,370,547.28/85,063
  6. Step 6: Final answer
    x = 74,278.72

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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.