Home / 85,538.96-128,300.19-26,358.74

Finding the Fourth Proportional to 85,538.96, 128,300.19 and 26,358.74

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Solution

The fourth proportional to 85,538.96, 128,300.19 and 26,358.74 is: 39,535.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,538.96 : 128,300.19 = 26,358.74 : x
  2. Step 2: Convert to fraction form
    85,538.96/128,300.19 = 26,358.74/x
  3. Step 3: Cross multiply
    85,538.96x = 128,300.19 × 26,358.74
  4. Step 4: Simplify right side
    85,538.96x = 3,381,831,350.16
  5. Step 5: Solve for x
    x = 3,381,831,350.16/85,538.96
  6. Step 6: Final answer
    x = 39,535.57

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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.