Home / 89,771.47-134,708.64-45,401.83

Finding the Fourth Proportional to 89,771.47, 134,708.64 and 45,401.83

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Solution

The fourth proportional to 89,771.47, 134,708.64 and 45,401.83 is: 68,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,771.47 : 134,708.64 = 45,401.83 : x
  2. Step 2: Convert to fraction form
    89,771.47/134,708.64 = 45,401.83/x
  3. Step 3: Cross multiply
    89,771.47x = 134,708.64 × 45,401.83
  4. Step 4: Simplify right side
    89,771.47x = 6,116,018,772.81
  5. Step 5: Solve for x
    x = 6,116,018,772.81/89,771.47
  6. Step 6: Final answer
    x = 68,128.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.