Home / 55,391.23-76,503.63-40,351.15

Finding the Fourth Proportional to 55,391.23, 76,503.63 and 40,351.15

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Solution

The fourth proportional to 55,391.23, 76,503.63 and 40,351.15 is: 55,731.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,391.23 : 76,503.63 = 40,351.15 : x
  2. Step 2: Convert to fraction form
    55,391.23/76,503.63 = 40,351.15/x
  3. Step 3: Cross multiply
    55,391.23x = 76,503.63 × 40,351.15
  4. Step 4: Simplify right side
    55,391.23x = 3,087,009,449.67
  5. Step 5: Solve for x
    x = 3,087,009,449.67/55,391.23
  6. Step 6: Final answer
    x = 55,731.01

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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.