Home / 74,140.16-102,330.18-57,975.48

Finding the Fourth Proportional to 74,140.16, 102,330.18 and 57,975.48

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Solution

The fourth proportional to 74,140.16, 102,330.18 and 57,975.48 is: 80,019.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,140.16 : 102,330.18 = 57,975.48 : x
  2. Step 2: Convert to fraction form
    74,140.16/102,330.18 = 57,975.48/x
  3. Step 3: Cross multiply
    74,140.16x = 102,330.18 × 57,975.48
  4. Step 4: Simplify right side
    74,140.16x = 5,932,641,303.99
  5. Step 5: Solve for x
    x = 5,932,641,303.99/74,140.16
  6. Step 6: Final answer
    x = 80,019.27

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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.