Home / 85,602.10-128,297.97-48,083.30

Finding the Fourth Proportional to 85,602.10, 128,297.97 and 48,083.30

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Solution

The fourth proportional to 85,602.10, 128,297.97 and 48,083.30 is: 72,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,602.10 : 128,297.97 = 48,083.30 : x
  2. Step 2: Convert to fraction form
    85,602.10/128,297.97 = 48,083.30/x
  3. Step 3: Cross multiply
    85,602.10x = 128,297.97 × 48,083.30
  4. Step 4: Simplify right side
    85,602.10x = 6,168,989,780.90
  5. Step 5: Solve for x
    x = 6,168,989,780.90/85,602.10
  6. Step 6: Final answer
    x = 72,065.87

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1.5x scale

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.