Home / 53,655.20-80,561.78-30,009.07

Finding the Fourth Proportional to 53,655.20, 80,561.78 and 30,009.07

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Solution

The fourth proportional to 53,655.20, 80,561.78 and 30,009.07 is: 45,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,655.20 : 80,561.78 = 30,009.07 : x
  2. Step 2: Convert to fraction form
    53,655.20/80,561.78 = 30,009.07/x
  3. Step 3: Cross multiply
    53,655.20x = 80,561.78 × 30,009.07
  4. Step 4: Simplify right side
    53,655.20x = 2,417,584,095.34
  5. Step 5: Solve for x
    x = 2,417,584,095.34/53,655.20
  6. Step 6: Final answer
    x = 45,057.78

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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.