Home / 85,778.04-128,622.06-35,848.92

Finding the Fourth Proportional to 85,778.04, 128,622.06 and 35,848.92

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Solution

The fourth proportional to 85,778.04, 128,622.06 and 35,848.92 is: 53,754.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,778.04 : 128,622.06 = 35,848.92 : x
  2. Step 2: Convert to fraction form
    85,778.04/128,622.06 = 35,848.92/x
  3. Step 3: Cross multiply
    85,778.04x = 128,622.06 × 35,848.92
  4. Step 4: Simplify right side
    85,778.04x = 4,610,961,939.18
  5. Step 5: Solve for x
    x = 4,610,961,939.18/85,778.04
  6. Step 6: Final answer
    x = 53,754.57

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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.