Home / 64,976.58-89,686.44-38,120.22

Finding the Fourth Proportional to 64,976.58, 89,686.44 and 38,120.22

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Solution

The fourth proportional to 64,976.58, 89,686.44 and 38,120.22 is: 52,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,976.58 : 89,686.44 = 38,120.22 : x
  2. Step 2: Convert to fraction form
    64,976.58/89,686.44 = 38,120.22/x
  3. Step 3: Cross multiply
    64,976.58x = 89,686.44 × 38,120.22
  4. Step 4: Simplify right side
    64,976.58x = 3,418,866,823.82
  5. Step 5: Solve for x
    x = 3,418,866,823.82/64,976.58
  6. Step 6: Final answer
    x = 52,616.91

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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.