Home / 74,519.19-102,838.28-42,698.07

Finding the Fourth Proportional to 74,519.19, 102,838.28 and 42,698.07

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Solution

The fourth proportional to 74,519.19, 102,838.28 and 42,698.07 is: 58,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,519.19 : 102,838.28 = 42,698.07 : x
  2. Step 2: Convert to fraction form
    74,519.19/102,838.28 = 42,698.07/x
  3. Step 3: Cross multiply
    74,519.19x = 102,838.28 × 42,698.07
  4. Step 4: Simplify right side
    74,519.19x = 4,390,995,864.63
  5. Step 5: Solve for x
    x = 4,390,995,864.63/74,519.19
  6. Step 6: Final answer
    x = 58,924.36

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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.