Home / 65,210.10-97,822.35-20,829.30

Finding the Fourth Proportional to 65,210.10, 97,822.35 and 20,829.30

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Solution

The fourth proportional to 65,210.10, 97,822.35 and 20,829.30 is: 31,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,210.10 : 97,822.35 = 20,829.30 : x
  2. Step 2: Convert to fraction form
    65,210.10/97,822.35 = 20,829.30/x
  3. Step 3: Cross multiply
    65,210.10x = 97,822.35 × 20,829.30
  4. Step 4: Simplify right side
    65,210.10x = 2,037,571,074.86
  5. Step 5: Solve for x
    x = 2,037,571,074.86/65,210.10
  6. Step 6: Final answer
    x = 31,246.25

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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.