Home / 64,520.40-89,035.56-36,225.48

Finding the Fourth Proportional to 64,520.40, 89,035.56 and 36,225.48

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Solution

The fourth proportional to 64,520.40, 89,035.56 and 36,225.48 is: 49,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,520.40 : 89,035.56 = 36,225.48 : x
  2. Step 2: Convert to fraction form
    64,520.40/89,035.56 = 36,225.48/x
  3. Step 3: Cross multiply
    64,520.40x = 89,035.56 × 36,225.48
  4. Step 4: Simplify right side
    64,520.40x = 3,225,355,898.07
  5. Step 5: Solve for x
    x = 3,225,355,898.07/64,520.40
  6. Step 6: Final answer
    x = 49,989.71

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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.