Home / 85,528.38-128,316.06-35,631.84

Finding the Fourth Proportional to 85,528.38, 128,316.06 and 35,631.84

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Solution

The fourth proportional to 85,528.38, 128,316.06 and 35,631.84 is: 53,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,528.38 : 128,316.06 = 35,631.84 : x
  2. Step 2: Convert to fraction form
    85,528.38/128,316.06 = 35,631.84/x
  3. Step 3: Cross multiply
    85,528.38x = 128,316.06 × 35,631.84
  4. Step 4: Simplify right side
    85,528.38x = 4,572,137,319.35
  5. Step 5: Solve for x
    x = 4,572,137,319.35/85,528.38
  6. Step 6: Final answer
    x = 53,457.55

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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.