Home / 56,401.48-77,830.68-30,902.76

Finding the Fourth Proportional to 56,401.48, 77,830.68 and 30,902.76

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Solution

The fourth proportional to 56,401.48, 77,830.68 and 30,902.76 is: 42,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,401.48 : 77,830.68 = 30,902.76 : x
  2. Step 2: Convert to fraction form
    56,401.48/77,830.68 = 30,902.76/x
  3. Step 3: Cross multiply
    56,401.48x = 77,830.68 × 30,902.76
  4. Step 4: Simplify right side
    56,401.48x = 2,405,182,824.68
  5. Step 5: Solve for x
    x = 2,405,182,824.68/56,401.48
  6. Step 6: Final answer
    x = 42,643.97

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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.