Home / 85,581.08-128,316.96-41,119.40

Finding the Fourth Proportional to 85,581.08, 128,316.96 and 41,119.40

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Solution

The fourth proportional to 85,581.08, 128,316.96 and 41,119.40 is: 61,652.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,581.08 : 128,316.96 = 41,119.40 : x
  2. Step 2: Convert to fraction form
    85,581.08/128,316.96 = 41,119.40/x
  3. Step 3: Cross multiply
    85,581.08x = 128,316.96 × 41,119.40
  4. Step 4: Simplify right side
    85,581.08x = 5,276,316,405.02
  5. Step 5: Solve for x
    x = 5,276,316,405.02/85,581.08
  6. Step 6: Final answer
    x = 61,652.84

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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.