Home / 85,153.06-117,509.70-47,426.50

Finding the Fourth Proportional to 85,153.06, 117,509.70 and 47,426.50

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Solution

The fourth proportional to 85,153.06, 117,509.70 and 47,426.50 is: 65,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,153.06 : 117,509.70 = 47,426.50 : x
  2. Step 2: Convert to fraction form
    85,153.06/117,509.70 = 47,426.50/x
  3. Step 3: Cross multiply
    85,153.06x = 117,509.70 × 47,426.50
  4. Step 4: Simplify right side
    85,153.06x = 5,573,073,787.05
  5. Step 5: Solve for x
    x = 5,573,073,787.05/85,153.06
  6. Step 6: Final answer
    x = 65,447.72

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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.