Home / 53,739.20-74,158.48-30,768.26

Finding the Fourth Proportional to 53,739.20, 74,158.48 and 30,768.26

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Solution

The fourth proportional to 53,739.20, 74,158.48 and 30,768.26 is: 42,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,739.20 : 74,158.48 = 30,768.26 : x
  2. Step 2: Convert to fraction form
    53,739.20/74,158.48 = 30,768.26/x
  3. Step 3: Cross multiply
    53,739.20x = 74,158.48 × 30,768.26
  4. Step 4: Simplify right side
    53,739.20x = 2,281,726,946.13
  5. Step 5: Solve for x
    x = 2,281,726,946.13/53,739.20
  6. Step 6: Final answer
    x = 42,459.26

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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.