Home / 53,828.20-80,742.30-42,151.40

Finding the Fourth Proportional to 53,828.20, 80,742.30 and 42,151.40

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Solution

The fourth proportional to 53,828.20, 80,742.30 and 42,151.40 is: 63,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,828.20 : 80,742.30 = 42,151.40 : x
  2. Step 2: Convert to fraction form
    53,828.20/80,742.30 = 42,151.40/x
  3. Step 3: Cross multiply
    53,828.20x = 80,742.30 × 42,151.40
  4. Step 4: Simplify right side
    53,828.20x = 3,403,400,984.22
  5. Step 5: Solve for x
    x = 3,403,400,984.22/53,828.20
  6. Step 6: Final answer
    x = 63,227.10

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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.