Home / 90,168.33-135,289.75-39,541.16

Finding the Fourth Proportional to 90,168.33, 135,289.75 and 39,541.16

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Solution

The fourth proportional to 90,168.33, 135,289.75 and 39,541.16 is: 59,328.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,168.33 : 135,289.75 = 39,541.16 : x
  2. Step 2: Convert to fraction form
    90,168.33/135,289.75 = 39,541.16/x
  3. Step 3: Cross multiply
    90,168.33x = 135,289.75 × 39,541.16
  4. Step 4: Simplify right side
    90,168.33x = 5,349,513,241.50
  5. Step 5: Solve for x
    x = 5,349,513,241.50/90,168.33
  6. Step 6: Final answer
    x = 59,328.07

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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.