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Finding the Fourth Proportional to 85,586.76, 118,107.52 and 47,345.32

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Solution

The fourth proportional to 85,586.76, 118,107.52 and 47,345.32 is: 65,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,586.76 : 118,107.52 = 47,345.32 : x
  2. Step 2: Convert to fraction form
    85,586.76/118,107.52 = 47,345.32/x
  3. Step 3: Cross multiply
    85,586.76x = 118,107.52 × 47,345.32
  4. Step 4: Simplify right side
    85,586.76x = 5,591,838,328.81
  5. Step 5: Solve for x
    x = 5,591,838,328.81/85,586.76
  6. Step 6: Final answer
    x = 65,335.32

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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.