Home / 74,065.09-102,103.50-52,807.45

Finding the Fourth Proportional to 74,065.09, 102,103.50 and 52,807.45

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Solution

The fourth proportional to 74,065.09, 102,103.50 and 52,807.45 is: 72,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,065.09 : 102,103.50 = 52,807.45 : x
  2. Step 2: Convert to fraction form
    74,065.09/102,103.50 = 52,807.45/x
  3. Step 3: Cross multiply
    74,065.09x = 102,103.50 × 52,807.45
  4. Step 4: Simplify right side
    74,065.09x = 5,391,825,471.08
  5. Step 5: Solve for x
    x = 5,391,825,471.08/74,065.09
  6. Step 6: Final answer
    x = 72,798.47

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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.