Home / 99,030.47-136,661.65-53,708.27

Finding the Fourth Proportional to 99,030.47, 136,661.65 and 53,708.27

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Solution

The fourth proportional to 99,030.47, 136,661.65 and 53,708.27 is: 74,117.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,030.47 : 136,661.65 = 53,708.27 : x
  2. Step 2: Convert to fraction form
    99,030.47/136,661.65 = 53,708.27/x
  3. Step 3: Cross multiply
    99,030.47x = 136,661.65 × 53,708.27
  4. Step 4: Simplify right side
    99,030.47x = 7,339,859,979.27
  5. Step 5: Solve for x
    x = 7,339,859,979.27/99,030.47
  6. Step 6: Final answer
    x = 74,117.19

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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.