Home / 74,621.61-102,985.08-55,725.93

Finding the Fourth Proportional to 74,621.61, 102,985.08 and 55,725.93

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Solution

The fourth proportional to 74,621.61, 102,985.08 and 55,725.93 is: 76,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,621.61 : 102,985.08 = 55,725.93 : x
  2. Step 2: Convert to fraction form
    74,621.61/102,985.08 = 55,725.93/x
  3. Step 3: Cross multiply
    74,621.61x = 102,985.08 × 55,725.93
  4. Step 4: Simplify right side
    74,621.61x = 5,738,939,359.12
  5. Step 5: Solve for x
    x = 5,738,939,359.12/74,621.61
  6. Step 6: Final answer
    x = 76,907.20

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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.