Home / 75,087.32-103,698.06-64,967.18

Finding the Fourth Proportional to 75,087.32, 103,698.06 and 64,967.18

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Solution

The fourth proportional to 75,087.32, 103,698.06 and 64,967.18 is: 89,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,087.32 : 103,698.06 = 64,967.18 : x
  2. Step 2: Convert to fraction form
    75,087.32/103,698.06 = 64,967.18/x
  3. Step 3: Cross multiply
    75,087.32x = 103,698.06 × 64,967.18
  4. Step 4: Simplify right side
    75,087.32x = 6,736,970,529.67
  5. Step 5: Solve for x
    x = 6,736,970,529.67/75,087.32
  6. Step 6: Final answer
    x = 89,721.81

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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.