Home / 50,830.18-70,139-28,168.08

Finding the Fourth Proportional to 50,830.18, 70,139 and 28,168.08

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Solution

The fourth proportional to 50,830.18, 70,139 and 28,168.08 is: 38,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,830.18 : 70,139 = 28,168.08 : x
  2. Step 2: Convert to fraction form
    50,830.18/70,139 = 28,168.08/x
  3. Step 3: Cross multiply
    50,830.18x = 70,139 × 28,168.08
  4. Step 4: Simplify right side
    50,830.18x = 1,975,680,963.12
  5. Step 5: Solve for x
    x = 1,975,680,963.12/50,830.18
  6. Step 6: Final answer
    x = 38,868.27

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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.