Home / 74,382.60-102,688.02-57,349.47

Finding the Fourth Proportional to 74,382.60, 102,688.02 and 57,349.47

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Solution

The fourth proportional to 74,382.60, 102,688.02 and 57,349.47 is: 79,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,382.60 : 102,688.02 = 57,349.47 : x
  2. Step 2: Convert to fraction form
    74,382.60/102,688.02 = 57,349.47/x
  3. Step 3: Cross multiply
    74,382.60x = 102,688.02 × 57,349.47
  4. Step 4: Simplify right side
    74,382.60x = 5,889,103,522.35
  5. Step 5: Solve for x
    x = 5,889,103,522.35/74,382.60
  6. Step 6: Final answer
    x = 79,173.13

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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.