Home / 74,284.52-102,512.13-40,292.87

Finding the Fourth Proportional to 74,284.52, 102,512.13 and 40,292.87

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Solution

The fourth proportional to 74,284.52, 102,512.13 and 40,292.87 is: 55,603.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,284.52 : 102,512.13 = 40,292.87 : x
  2. Step 2: Convert to fraction form
    74,284.52/102,512.13 = 40,292.87/x
  3. Step 3: Cross multiply
    74,284.52x = 102,512.13 × 40,292.87
  4. Step 4: Simplify right side
    74,284.52x = 4,130,507,927.51
  5. Step 5: Solve for x
    x = 4,130,507,927.51/74,284.52
  6. Step 6: Final answer
    x = 55,603.89

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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.