Home / 85,947.89-118,605.84-47,705.45

Finding the Fourth Proportional to 85,947.89, 118,605.84 and 47,705.45

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Solution

The fourth proportional to 85,947.89, 118,605.84 and 47,705.45 is: 65,832.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,947.89 : 118,605.84 = 47,705.45 : x
  2. Step 2: Convert to fraction form
    85,947.89/118,605.84 = 47,705.45/x
  3. Step 3: Cross multiply
    85,947.89x = 118,605.84 × 47,705.45
  4. Step 4: Simplify right side
    85,947.89x = 5,658,144,376.80
  5. Step 5: Solve for x
    x = 5,658,144,376.80/85,947.89
  6. Step 6: Final answer
    x = 65,832.27

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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.