Home / 86,880.96-130,312.80-40,133.16

Finding the Fourth Proportional to 86,880.96, 130,312.80 and 40,133.16

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Solution

The fourth proportional to 86,880.96, 130,312.80 and 40,133.16 is: 60,195.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,880.96 : 130,312.80 = 40,133.16 : x
  2. Step 2: Convert to fraction form
    86,880.96/130,312.80 = 40,133.16/x
  3. Step 3: Cross multiply
    86,880.96x = 130,312.80 × 40,133.16
  4. Step 4: Simplify right side
    86,880.96x = 5,229,864,452.45
  5. Step 5: Solve for x
    x = 5,229,864,452.45/86,880.96
  6. Step 6: Final answer
    x = 60,195.75

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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.