Home / 85,441.55-128,089.62-52,184.94

Finding the Fourth Proportional to 85,441.55, 128,089.62 and 52,184.94

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Solution

The fourth proportional to 85,441.55, 128,089.62 and 52,184.94 is: 78,233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,441.55 : 128,089.62 = 52,184.94 : x
  2. Step 2: Convert to fraction form
    85,441.55/128,089.62 = 52,184.94/x
  3. Step 3: Cross multiply
    85,441.55x = 128,089.62 × 52,184.94
  4. Step 4: Simplify right side
    85,441.55x = 6,684,348,938.63
  5. Step 5: Solve for x
    x = 6,684,348,938.63/85,441.55
  6. Step 6: Final answer
    x = 78,233.01

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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.