Home / 48,316.14-66,614.55-31,290.30

Finding the Fourth Proportional to 48,316.14, 66,614.55 and 31,290.30

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Solution

The fourth proportional to 48,316.14, 66,614.55 and 31,290.30 is: 43,140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,316.14 : 66,614.55 = 31,290.30 : x
  2. Step 2: Convert to fraction form
    48,316.14/66,614.55 = 31,290.30/x
  3. Step 3: Cross multiply
    48,316.14x = 66,614.55 × 31,290.30
  4. Step 4: Simplify right side
    48,316.14x = 2,084,389,253.87
  5. Step 5: Solve for x
    x = 2,084,389,253.87/48,316.14
  6. Step 6: Final answer
    x = 43,140.64

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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.