Home / 85,433.22-128,062.35-43,235.10

Finding the Fourth Proportional to 85,433.22, 128,062.35 and 43,235.10

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Solution

The fourth proportional to 85,433.22, 128,062.35 and 43,235.10 is: 64,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,433.22 : 128,062.35 = 43,235.10 : x
  2. Step 2: Convert to fraction form
    85,433.22/128,062.35 = 43,235.10/x
  3. Step 3: Cross multiply
    85,433.22x = 128,062.35 × 43,235.10
  4. Step 4: Simplify right side
    85,433.22x = 5,536,788,508.49
  5. Step 5: Solve for x
    x = 5,536,788,508.49/85,433.22
  6. Step 6: Final answer
    x = 64,808.38

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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.