Home / 57,888.09-86,831.18-18,444.66

Finding the Fourth Proportional to 57,888.09, 86,831.18 and 18,444.66

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Solution

The fourth proportional to 57,888.09, 86,831.18 and 18,444.66 is: 27,666.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,888.09 : 86,831.18 = 18,444.66 : x
  2. Step 2: Convert to fraction form
    57,888.09/86,831.18 = 18,444.66/x
  3. Step 3: Cross multiply
    57,888.09x = 86,831.18 × 18,444.66
  4. Step 4: Simplify right side
    57,888.09x = 1,601,571,500.28
  5. Step 5: Solve for x
    x = 1,601,571,500.28/57,888.09
  6. Step 6: Final answer
    x = 27,666.68

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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.