Home / 66,030.49-90,996.10-47,134.81

Finding the Fourth Proportional to 66,030.49, 90,996.10 and 47,134.81

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Solution

The fourth proportional to 66,030.49, 90,996.10 and 47,134.81 is: 64,956.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,030.49 : 90,996.10 = 47,134.81 : x
  2. Step 2: Convert to fraction form
    66,030.49/90,996.10 = 47,134.81/x
  3. Step 3: Cross multiply
    66,030.49x = 90,996.10 × 47,134.81
  4. Step 4: Simplify right side
    66,030.49x = 4,289,083,884.24
  5. Step 5: Solve for x
    x = 4,289,083,884.24/66,030.49
  6. Step 6: Final answer
    x = 64,956.11

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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.