Home / 86,902.12-130,257.06-56,880.28

Finding the Fourth Proportional to 86,902.12, 130,257.06 and 56,880.28

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Solution

The fourth proportional to 86,902.12, 130,257.06 and 56,880.28 is: 85,257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,902.12 : 130,257.06 = 56,880.28 : x
  2. Step 2: Convert to fraction form
    86,902.12/130,257.06 = 56,880.28/x
  3. Step 3: Cross multiply
    86,902.12x = 130,257.06 × 56,880.28
  4. Step 4: Simplify right side
    86,902.12x = 7,409,058,044.78
  5. Step 5: Solve for x
    x = 7,409,058,044.78/86,902.12
  6. Step 6: Final answer
    x = 85,257.51

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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.