Home / 65,405.21-97,984.02-38,671.16

Finding the Fourth Proportional to 65,405.21, 97,984.02 and 38,671.16

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Solution

The fourth proportional to 65,405.21, 97,984.02 and 38,671.16 is: 57,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,405.21 : 97,984.02 = 38,671.16 : x
  2. Step 2: Convert to fraction form
    65,405.21/97,984.02 = 38,671.16/x
  3. Step 3: Cross multiply
    65,405.21x = 97,984.02 × 38,671.16
  4. Step 4: Simplify right side
    65,405.21x = 3,789,155,714.86
  5. Step 5: Solve for x
    x = 3,789,155,714.86/65,405.21
  6. Step 6: Final answer
    x = 57,933.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.