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Finding the Fourth Proportional to 85,700.25, 128,466.93 and 35,794.62

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Solution

The fourth proportional to 85,700.25, 128,466.93 and 35,794.62 is: 53,657.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,700.25 : 128,466.93 = 35,794.62 : x
  2. Step 2: Convert to fraction form
    85,700.25/128,466.93 = 35,794.62/x
  3. Step 3: Cross multiply
    85,700.25x = 128,466.93 × 35,794.62
  4. Step 4: Simplify right side
    85,700.25x = 4,598,424,941.92
  5. Step 5: Solve for x
    x = 4,598,424,941.92/85,700.25
  6. Step 6: Final answer
    x = 53,657.08

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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.