Home / 85,946.96-128,889.52-29,771.92

Finding the Fourth Proportional to 85,946.96, 128,889.52 and 29,771.92

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Solution

The fourth proportional to 85,946.96, 128,889.52 and 29,771.92 is: 44,647.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,946.96 : 128,889.52 = 29,771.92 : x
  2. Step 2: Convert to fraction form
    85,946.96/128,889.52 = 29,771.92/x
  3. Step 3: Cross multiply
    85,946.96x = 128,889.52 × 29,771.92
  4. Step 4: Simplify right side
    85,946.96x = 3,837,288,478.28
  5. Step 5: Solve for x
    x = 3,837,288,478.28/85,946.96
  6. Step 6: Final answer
    x = 44,647.17

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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.