Home / 85,703.28-118,263.96-47,972.40

Finding the Fourth Proportional to 85,703.28, 118,263.96 and 47,972.40

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Solution

The fourth proportional to 85,703.28, 118,263.96 and 47,972.40 is: 66,198.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,703.28 : 118,263.96 = 47,972.40 : x
  2. Step 2: Convert to fraction form
    85,703.28/118,263.96 = 47,972.40/x
  3. Step 3: Cross multiply
    85,703.28x = 118,263.96 × 47,972.40
  4. Step 4: Simplify right side
    85,703.28x = 5,673,405,994.70
  5. Step 5: Solve for x
    x = 5,673,405,994.70/85,703.28
  6. Step 6: Final answer
    x = 66,198.24

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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.