Home / 74,298.02-102,530.40-40,305.86

Finding the Fourth Proportional to 74,298.02, 102,530.40 and 40,305.86

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Solution

The fourth proportional to 74,298.02, 102,530.40 and 40,305.86 is: 55,621.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,298.02 : 102,530.40 = 40,305.86 : x
  2. Step 2: Convert to fraction form
    74,298.02/102,530.40 = 40,305.86/x
  3. Step 3: Cross multiply
    74,298.02x = 102,530.40 × 40,305.86
  4. Step 4: Simplify right side
    74,298.02x = 4,132,575,948.14
  5. Step 5: Solve for x
    x = 4,132,575,948.14/74,298.02
  6. Step 6: Final answer
    x = 55,621.62

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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.