Home / 55,950.12-77,212.15-30,457.22

Finding the Fourth Proportional to 55,950.12, 77,212.15 and 30,457.22

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Solution

The fourth proportional to 55,950.12, 77,212.15 and 30,457.22 is: 42,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,950.12 : 77,212.15 = 30,457.22 : x
  2. Step 2: Convert to fraction form
    55,950.12/77,212.15 = 30,457.22/x
  3. Step 3: Cross multiply
    55,950.12x = 77,212.15 × 30,457.22
  4. Step 4: Simplify right side
    55,950.12x = 2,351,667,439.22
  5. Step 5: Solve for x
    x = 2,351,667,439.22/55,950.12
  6. Step 6: Final answer
    x = 42,031.50

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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.