Home / 85,991.64-129,002.62-26,812.58

Finding the Fourth Proportional to 85,991.64, 129,002.62 and 26,812.58

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Solution

The fourth proportional to 85,991.64, 129,002.62 and 26,812.58 is: 40,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,991.64 : 129,002.62 = 26,812.58 : x
  2. Step 2: Convert to fraction form
    85,991.64/129,002.62 = 26,812.58/x
  3. Step 3: Cross multiply
    85,991.64x = 129,002.62 × 26,812.58
  4. Step 4: Simplify right side
    85,991.64x = 3,458,893,068.96
  5. Step 5: Solve for x
    x = 3,458,893,068.96/85,991.64
  6. Step 6: Final answer
    x = 40,223.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.