Home / 55,666.98-76,825.30-30,521.34

Finding the Fourth Proportional to 55,666.98, 76,825.30 and 30,521.34

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Solution

The fourth proportional to 55,666.98, 76,825.30 and 30,521.34 is: 42,122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,666.98 : 76,825.30 = 30,521.34 : x
  2. Step 2: Convert to fraction form
    55,666.98/76,825.30 = 30,521.34/x
  3. Step 3: Cross multiply
    55,666.98x = 76,825.30 × 30,521.34
  4. Step 4: Simplify right side
    55,666.98x = 2,344,811,101.90
  5. Step 5: Solve for x
    x = 2,344,811,101.90/55,666.98
  6. Step 6: Final answer
    x = 42,122.12

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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.