Home / 74,069.09-102,109.02-52,811.45

Finding the Fourth Proportional to 74,069.09, 102,109.02 and 52,811.45

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Solution

The fourth proportional to 74,069.09, 102,109.02 and 52,811.45 is: 72,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,069.09 : 102,109.02 = 52,811.45 : x
  2. Step 2: Convert to fraction form
    74,069.09/102,109.02 = 52,811.45/x
  3. Step 3: Cross multiply
    74,069.09x = 102,109.02 × 52,811.45
  4. Step 4: Simplify right side
    74,069.09x = 5,392,525,404.28
  5. Step 5: Solve for x
    x = 5,392,525,404.28/74,069.09
  6. Step 6: Final answer
    x = 72,803.99

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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.