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Finding the Fourth Proportional to 50,743.90, 70,009.51 and 29,505.70

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Solution

The fourth proportional to 50,743.90, 70,009.51 and 29,505.70 is: 40,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,743.90 : 70,009.51 = 29,505.70 : x
  2. Step 2: Convert to fraction form
    50,743.90/70,009.51 = 29,505.70/x
  3. Step 3: Cross multiply
    50,743.90x = 70,009.51 × 29,505.70
  4. Step 4: Simplify right side
    50,743.90x = 2,065,679,101.63
  5. Step 5: Solve for x
    x = 2,065,679,101.63/50,743.90
  6. Step 6: Final answer
    x = 40,707.93

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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.