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Finding the Fourth Proportional to 56,553.60, 84,830.40 and 39,057.60

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Solution

The fourth proportional to 56,553.60, 84,830.40 and 39,057.60 is: 58,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,553.60 : 84,830.40 = 39,057.60 : x
  2. Step 2: Convert to fraction form
    56,553.60/84,830.40 = 39,057.60/x
  3. Step 3: Cross multiply
    56,553.60x = 84,830.40 × 39,057.60
  4. Step 4: Simplify right side
    56,553.60x = 3,313,271,831.04
  5. Step 5: Solve for x
    x = 3,313,271,831.04/56,553.60
  6. Step 6: Final answer
    x = 58,586.40

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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.