Home / 85,916.76-128,824.92-32,612.28

Finding the Fourth Proportional to 85,916.76, 128,824.92 and 32,612.28

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Solution

The fourth proportional to 85,916.76, 128,824.92 and 32,612.28 is: 48,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,916.76 : 128,824.92 = 32,612.28 : x
  2. Step 2: Convert to fraction form
    85,916.76/128,824.92 = 32,612.28/x
  3. Step 3: Cross multiply
    85,916.76x = 128,824.92 × 32,612.28
  4. Step 4: Simplify right side
    85,916.76x = 4,201,274,362.02
  5. Step 5: Solve for x
    x = 4,201,274,362.02/85,916.76
  6. Step 6: Final answer
    x = 48,899.36

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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.