Home / 86,824.77-130,455.12-55,248.54

Finding the Fourth Proportional to 86,824.77, 130,455.12 and 55,248.54

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Solution

The fourth proportional to 86,824.77, 130,455.12 and 55,248.54 is: 83,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,824.77 : 130,455.12 = 55,248.54 : x
  2. Step 2: Convert to fraction form
    86,824.77/130,455.12 = 55,248.54/x
  3. Step 3: Cross multiply
    86,824.77x = 130,455.12 × 55,248.54
  4. Step 4: Simplify right side
    86,824.77x = 7,207,454,915.52
  5. Step 5: Solve for x
    x = 7,207,454,915.52/86,824.77
  6. Step 6: Final answer
    x = 83,011.51

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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.