Home / 52,485.05-78,713.18-31,408.51

Finding the Fourth Proportional to 52,485.05, 78,713.18 and 31,408.51

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Solution

The fourth proportional to 52,485.05, 78,713.18 and 31,408.51 is: 47,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,485.05 : 78,713.18 = 31,408.51 : x
  2. Step 2: Convert to fraction form
    52,485.05/78,713.18 = 31,408.51/x
  3. Step 3: Cross multiply
    52,485.05x = 78,713.18 × 31,408.51
  4. Step 4: Simplify right side
    52,485.05x = 2,472,263,701.16
  5. Step 5: Solve for x
    x = 2,472,263,701.16/52,485.05
  6. Step 6: Final answer
    x = 47,104.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.