Home / 64,818.90-89,448.30-36,138.96

Finding the Fourth Proportional to 64,818.90, 89,448.30 and 36,138.96

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Solution

The fourth proportional to 64,818.90, 89,448.30 and 36,138.96 is: 49,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,818.90 : 89,448.30 = 36,138.96 : x
  2. Step 2: Convert to fraction form
    64,818.90/89,448.30 = 36,138.96/x
  3. Step 3: Cross multiply
    64,818.90x = 89,448.30 × 36,138.96
  4. Step 4: Simplify right side
    64,818.90x = 3,232,568,535.77
  5. Step 5: Solve for x
    x = 3,232,568,535.77/64,818.90
  6. Step 6: Final answer
    x = 49,870.77

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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.