Home / 86,931.12-130,297.20-36,937.92

Finding the Fourth Proportional to 86,931.12, 130,297.20 and 36,937.92

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Solution

The fourth proportional to 86,931.12, 130,297.20 and 36,937.92 is: 55,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,931.12 : 130,297.20 = 36,937.92 : x
  2. Step 2: Convert to fraction form
    86,931.12/130,297.20 = 36,937.92/x
  3. Step 3: Cross multiply
    86,931.12x = 130,297.20 × 36,937.92
  4. Step 4: Simplify right side
    86,931.12x = 4,812,907,549.82
  5. Step 5: Solve for x
    x = 4,812,907,549.82/86,931.12
  6. Step 6: Final answer
    x = 55,364.61

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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.