Home / 55,813.05-77,020.67-31,938.20

Finding the Fourth Proportional to 55,813.05, 77,020.67 and 31,938.20

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Solution

The fourth proportional to 55,813.05, 77,020.67 and 31,938.20 is: 44,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,813.05 : 77,020.67 = 31,938.20 : x
  2. Step 2: Convert to fraction form
    55,813.05/77,020.67 = 31,938.20/x
  3. Step 3: Cross multiply
    55,813.05x = 77,020.67 × 31,938.20
  4. Step 4: Simplify right side
    55,813.05x = 2,459,901,546.16
  5. Step 5: Solve for x
    x = 2,459,901,546.16/55,813.05
  6. Step 6: Final answer
    x = 44,073.95

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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.