Home / 56,203.89-77,559.03-30,709.68

Finding the Fourth Proportional to 56,203.89, 77,559.03 and 30,709.68

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Solution

The fourth proportional to 56,203.89, 77,559.03 and 30,709.68 is: 42,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,203.89 : 77,559.03 = 30,709.68 : x
  2. Step 2: Convert to fraction form
    56,203.89/77,559.03 = 30,709.68/x
  3. Step 3: Cross multiply
    56,203.89x = 77,559.03 × 30,709.68
  4. Step 4: Simplify right side
    56,203.89x = 2,381,812,992.41
  5. Step 5: Solve for x
    x = 2,381,812,992.41/56,203.89
  6. Step 6: Final answer
    x = 42,378.08

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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.