Home / 99,030.24-136,661.81-53,708.21

Finding the Fourth Proportional to 99,030.24, 136,661.81 and 53,708.21

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Solution

The fourth proportional to 99,030.24, 136,661.81 and 53,708.21 is: 74,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,030.24 : 136,661.81 = 53,708.21 : x
  2. Step 2: Convert to fraction form
    99,030.24/136,661.81 = 53,708.21/x
  3. Step 3: Cross multiply
    99,030.24x = 136,661.81 × 53,708.21
  4. Step 4: Simplify right side
    99,030.24x = 7,339,861,263.57
  5. Step 5: Solve for x
    x = 7,339,861,263.57/99,030.24
  6. Step 6: Final answer
    x = 74,117.37

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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.