Home / 55,734.21-76,870.22-38,738.12

Finding the Fourth Proportional to 55,734.21, 76,870.22 and 38,738.12

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Solution

The fourth proportional to 55,734.21, 76,870.22 and 38,738.12 is: 53,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,734.21 : 76,870.22 = 38,738.12 : x
  2. Step 2: Convert to fraction form
    55,734.21/76,870.22 = 38,738.12/x
  3. Step 3: Cross multiply
    55,734.21x = 76,870.22 × 38,738.12
  4. Step 4: Simplify right side
    55,734.21x = 2,977,807,228.74
  5. Step 5: Solve for x
    x = 2,977,807,228.74/55,734.21
  6. Step 6: Final answer
    x = 53,428.72

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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.