Home / 53,911.40-80,838.30-18,852.20

Finding the Fourth Proportional to 53,911.40, 80,838.30 and 18,852.20

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Solution

The fourth proportional to 53,911.40, 80,838.30 and 18,852.20 is: 28,268.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,911.40 : 80,838.30 = 18,852.20 : x
  2. Step 2: Convert to fraction form
    53,911.40/80,838.30 = 18,852.20/x
  3. Step 3: Cross multiply
    53,911.40x = 80,838.30 × 18,852.20
  4. Step 4: Simplify right side
    53,911.40x = 1,523,979,799.26
  5. Step 5: Solve for x
    x = 1,523,979,799.26/53,911.40
  6. Step 6: Final answer
    x = 28,268.23

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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.