Home / 78,405.02-108,188.43-46,562.30

Finding the Fourth Proportional to 78,405.02, 108,188.43 and 46,562.30

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Solution

The fourth proportional to 78,405.02, 108,188.43 and 46,562.30 is: 64,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,405.02 : 108,188.43 = 46,562.30 : x
  2. Step 2: Convert to fraction form
    78,405.02/108,188.43 = 46,562.30/x
  3. Step 3: Cross multiply
    78,405.02x = 108,188.43 × 46,562.30
  4. Step 4: Simplify right side
    78,405.02x = 5,037,502,134.19
  5. Step 5: Solve for x
    x = 5,037,502,134.19/78,405.02
  6. Step 6: Final answer
    x = 64,249.74

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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.