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Finding the Fourth Proportional to 57,325.60, 85,988.40 and 43,328.80

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Solution

The fourth proportional to 57,325.60, 85,988.40 and 43,328.80 is: 64,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,325.60 : 85,988.40 = 43,328.80 : x
  2. Step 2: Convert to fraction form
    57,325.60/85,988.40 = 43,328.80/x
  3. Step 3: Cross multiply
    57,325.60x = 85,988.40 × 43,328.80
  4. Step 4: Simplify right side
    57,325.60x = 3,725,774,185.92
  5. Step 5: Solve for x
    x = 3,725,774,185.92/57,325.60
  6. Step 6: Final answer
    x = 64,993.20

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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.