Home / 55,889.13-77,125.92-30,738.63

Finding the Fourth Proportional to 55,889.13, 77,125.92 and 30,738.63

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Solution

The fourth proportional to 55,889.13, 77,125.92 and 30,738.63 is: 42,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,889.13 : 77,125.92 = 30,738.63 : x
  2. Step 2: Convert to fraction form
    55,889.13/77,125.92 = 30,738.63/x
  3. Step 3: Cross multiply
    55,889.13x = 77,125.92 × 30,738.63
  4. Step 4: Simplify right side
    55,889.13x = 2,370,745,118.29
  5. Step 5: Solve for x
    x = 2,370,745,118.29/55,889.13
  6. Step 6: Final answer
    x = 42,418.72

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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.