Home / 55,278.48-76,281.48-30,127.76

Finding the Fourth Proportional to 55,278.48, 76,281.48 and 30,127.76

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Solution

The fourth proportional to 55,278.48, 76,281.48 and 30,127.76 is: 41,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.48 : 76,281.48 = 30,127.76 : x
  2. Step 2: Convert to fraction form
    55,278.48/76,281.48 = 30,127.76/x
  3. Step 3: Cross multiply
    55,278.48x = 76,281.48 × 30,127.76
  4. Step 4: Simplify right side
    55,278.48x = 2,298,190,121.88
  5. Step 5: Solve for x
    x = 2,298,190,121.88/55,278.48
  6. Step 6: Final answer
    x = 41,574.77

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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.