Home / 48,419.80-72,629.70-30,837.40

Finding the Fourth Proportional to 48,419.80, 72,629.70 and 30,837.40

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Solution

The fourth proportional to 48,419.80, 72,629.70 and 30,837.40 is: 46,256.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,419.80 : 72,629.70 = 30,837.40 : x
  2. Step 2: Convert to fraction form
    48,419.80/72,629.70 = 30,837.40/x
  3. Step 3: Cross multiply
    48,419.80x = 72,629.70 × 30,837.40
  4. Step 4: Simplify right side
    48,419.80x = 2,239,711,110.78
  5. Step 5: Solve for x
    x = 2,239,711,110.78/48,419.80
  6. Step 6: Final answer
    x = 46,256.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.