Home / 74,298.45-102,529.86-45,215.91

Finding the Fourth Proportional to 74,298.45, 102,529.86 and 45,215.91

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Solution

The fourth proportional to 74,298.45, 102,529.86 and 45,215.91 is: 62,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,298.45 : 102,529.86 = 45,215.91 : x
  2. Step 2: Convert to fraction form
    74,298.45/102,529.86 = 45,215.91/x
  3. Step 3: Cross multiply
    74,298.45x = 102,529.86 × 45,215.91
  4. Step 4: Simplify right side
    74,298.45x = 4,635,980,922.07
  5. Step 5: Solve for x
    x = 4,635,980,922.07/74,298.45
  6. Step 6: Final answer
    x = 62,396.74

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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.