Home / 53,019.16-79,515.62-31,677.70

Finding the Fourth Proportional to 53,019.16, 79,515.62 and 31,677.70

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Solution

The fourth proportional to 53,019.16, 79,515.62 and 31,677.70 is: 47,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,019.16 : 79,515.62 = 31,677.70 : x
  2. Step 2: Convert to fraction form
    53,019.16/79,515.62 = 31,677.70/x
  3. Step 3: Cross multiply
    53,019.16x = 79,515.62 × 31,677.70
  4. Step 4: Simplify right side
    53,019.16x = 2,518,871,955.67
  5. Step 5: Solve for x
    x = 2,518,871,955.67/53,019.16
  6. Step 6: Final answer
    x = 47,508.71

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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.