Home / 50,690.80-69,955.14-28,030.78

Finding the Fourth Proportional to 50,690.80, 69,955.14 and 28,030.78

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Solution

The fourth proportional to 50,690.80, 69,955.14 and 28,030.78 is: 38,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,690.80 : 69,955.14 = 28,030.78 : x
  2. Step 2: Convert to fraction form
    50,690.80/69,955.14 = 28,030.78/x
  3. Step 3: Cross multiply
    50,690.80x = 69,955.14 × 28,030.78
  4. Step 4: Simplify right side
    50,690.80x = 1,960,897,139.21
  5. Step 5: Solve for x
    x = 1,960,897,139.21/50,690.80
  6. Step 6: Final answer
    x = 38,683.49

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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.