Home / 99,030.63-136,658.46-53,707.78

Finding the Fourth Proportional to 99,030.63, 136,658.46 and 53,707.78

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Solution

The fourth proportional to 99,030.63, 136,658.46 and 53,707.78 is: 74,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,030.63 : 136,658.46 = 53,707.78 : x
  2. Step 2: Convert to fraction form
    99,030.63/136,658.46 = 53,707.78/x
  3. Step 3: Cross multiply
    99,030.63x = 136,658.46 × 53,707.78
  4. Step 4: Simplify right side
    99,030.63x = 7,339,622,504.82
  5. Step 5: Solve for x
    x = 7,339,622,504.82/99,030.63
  6. Step 6: Final answer
    x = 74,114.67

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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.