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Finding the Fourth Proportional to 50,775.19, 70,068.65 and 28,112.84

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Solution

The fourth proportional to 50,775.19, 70,068.65 and 28,112.84 is: 38,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,775.19 : 70,068.65 = 28,112.84 : x
  2. Step 2: Convert to fraction form
    50,775.19/70,068.65 = 28,112.84/x
  3. Step 3: Cross multiply
    50,775.19x = 70,068.65 × 28,112.84
  4. Step 4: Simplify right side
    50,775.19x = 1,969,828,518.32
  5. Step 5: Solve for x
    x = 1,969,828,518.32/50,775.19
  6. Step 6: Final answer
    x = 38,795.10

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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.