Home / 64,699.45-89,280.39-36,399.67

Finding the Fourth Proportional to 64,699.45, 89,280.39 and 36,399.67

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Solution

The fourth proportional to 64,699.45, 89,280.39 and 36,399.67 is: 50,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,699.45 : 89,280.39 = 36,399.67 : x
  2. Step 2: Convert to fraction form
    64,699.45/89,280.39 = 36,399.67/x
  3. Step 3: Cross multiply
    64,699.45x = 89,280.39 × 36,399.67
  4. Step 4: Simplify right side
    64,699.45x = 3,249,776,733.47
  5. Step 5: Solve for x
    x = 3,249,776,733.47/64,699.45
  6. Step 6: Final answer
    x = 50,228.82

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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.