Home / 85,983.24-118,655.20-47,740.81

Finding the Fourth Proportional to 85,983.24, 118,655.20 and 47,740.81

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Solution

The fourth proportional to 85,983.24, 118,655.20 and 47,740.81 is: 65,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,983.24 : 118,655.20 = 47,740.81 : x
  2. Step 2: Convert to fraction form
    85,983.24/118,655.20 = 47,740.81/x
  3. Step 3: Cross multiply
    85,983.24x = 118,655.20 × 47,740.81
  4. Step 4: Simplify right side
    85,983.24x = 5,664,694,942.72
  5. Step 5: Solve for x
    x = 5,664,694,942.72/85,983.24
  6. Step 6: Final answer
    x = 65,881.39

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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.