Home / 55,809.72-77,015.43-30,315.15

Finding the Fourth Proportional to 55,809.72, 77,015.43 and 30,315.15

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Solution

The fourth proportional to 55,809.72, 77,015.43 and 30,315.15 is: 41,833.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,809.72 : 77,015.43 = 30,315.15 : x
  2. Step 2: Convert to fraction form
    55,809.72/77,015.43 = 30,315.15/x
  3. Step 3: Cross multiply
    55,809.72x = 77,015.43 × 30,315.15
  4. Step 4: Simplify right side
    55,809.72x = 2,334,734,312.76
  5. Step 5: Solve for x
    x = 2,334,734,312.76/55,809.72
  6. Step 6: Final answer
    x = 41,833.83

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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.