Home / 48,892.14-67,478.31-30,988.80

Finding the Fourth Proportional to 48,892.14, 67,478.31 and 30,988.80

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Solution

The fourth proportional to 48,892.14, 67,478.31 and 30,988.80 is: 42,769.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,892.14 : 67,478.31 = 30,988.80 : x
  2. Step 2: Convert to fraction form
    48,892.14/67,478.31 = 30,988.80/x
  3. Step 3: Cross multiply
    48,892.14x = 67,478.31 × 30,988.80
  4. Step 4: Simplify right side
    48,892.14x = 2,091,071,852.93
  5. Step 5: Solve for x
    x = 2,091,071,852.93/48,892.14
  6. Step 6: Final answer
    x = 42,769.08

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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.