Home / 85,440.53-128,173.04-26,281.19

Finding the Fourth Proportional to 85,440.53, 128,173.04 and 26,281.19

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Solution

The fourth proportional to 85,440.53, 128,173.04 and 26,281.19 is: 39,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,440.53 : 128,173.04 = 26,281.19 : x
  2. Step 2: Convert to fraction form
    85,440.53/128,173.04 = 26,281.19/x
  3. Step 3: Cross multiply
    85,440.53x = 128,173.04 × 26,281.19
  4. Step 4: Simplify right side
    85,440.53x = 3,368,539,441.96
  5. Step 5: Solve for x
    x = 3,368,539,441.96/85,440.53
  6. Step 6: Final answer
    x = 39,425.55

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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.