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Finding the Fourth Proportional to 50,871.65, 70,201.58 and 28,210.28

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Solution

The fourth proportional to 50,871.65, 70,201.58 and 28,210.28 is: 38,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,871.65 : 70,201.58 = 28,210.28 : x
  2. Step 2: Convert to fraction form
    50,871.65/70,201.58 = 28,210.28/x
  3. Step 3: Cross multiply
    50,871.65x = 70,201.58 × 28,210.28
  4. Step 4: Simplify right side
    50,871.65x = 1,980,406,262.69
  5. Step 5: Solve for x
    x = 1,980,406,262.69/50,871.65
  6. Step 6: Final answer
    x = 38,929.47

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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.