Home / 86,712.10-130,066.32-39,964.96

Finding the Fourth Proportional to 86,712.10, 130,066.32 and 39,964.96

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Solution

The fourth proportional to 86,712.10, 130,066.32 and 39,964.96 is: 59,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,712.10 : 130,066.32 = 39,964.96 : x
  2. Step 2: Convert to fraction form
    86,712.10/130,066.32 = 39,964.96/x
  3. Step 3: Cross multiply
    86,712.10x = 130,066.32 × 39,964.96
  4. Step 4: Simplify right side
    86,712.10x = 5,198,095,276.15
  5. Step 5: Solve for x
    x = 5,198,095,276.15/86,712.10
  6. Step 6: Final answer
    x = 59,946.60

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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.