Home / 53,539.06-73,881.91-30,879

Finding the Fourth Proportional to 53,539.06, 73,881.91 and 30,879

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Solution

The fourth proportional to 53,539.06, 73,881.91 and 30,879 is: 42,611.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,539.06 : 73,881.91 = 30,879 : x
  2. Step 2: Convert to fraction form
    53,539.06/73,881.91 = 30,879/x
  3. Step 3: Cross multiply
    53,539.06x = 73,881.91 × 30,879
  4. Step 4: Simplify right side
    53,539.06x = 2,281,399,498.89
  5. Step 5: Solve for x
    x = 2,281,399,498.89/53,539.06
  6. Step 6: Final answer
    x = 42,611.87

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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.