Home / 52,188.10-72,018.68-31,762.78

Finding the Fourth Proportional to 52,188.10, 72,018.68 and 31,762.78

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Solution

The fourth proportional to 52,188.10, 72,018.68 and 31,762.78 is: 43,832.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,188.10 : 72,018.68 = 31,762.78 : x
  2. Step 2: Convert to fraction form
    52,188.10/72,018.68 = 31,762.78/x
  3. Step 3: Cross multiply
    52,188.10x = 72,018.68 × 31,762.78
  4. Step 4: Simplify right side
    52,188.10x = 2,287,513,149.87
  5. Step 5: Solve for x
    x = 2,287,513,149.87/52,188.10
  6. Step 6: Final answer
    x = 43,832.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.