Home / 86,904.50-130,575.12-55,328.66

Finding the Fourth Proportional to 86,904.50, 130,575.12 and 55,328.66

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Solution

The fourth proportional to 86,904.50, 130,575.12 and 55,328.66 is: 83,132.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,904.50 : 130,575.12 = 55,328.66 : x
  2. Step 2: Convert to fraction form
    86,904.50/130,575.12 = 55,328.66/x
  3. Step 3: Cross multiply
    86,904.50x = 130,575.12 × 55,328.66
  4. Step 4: Simplify right side
    86,904.50x = 7,224,545,766.06
  5. Step 5: Solve for x
    x = 7,224,545,766.06/86,904.50
  6. Step 6: Final answer
    x = 83,132.01

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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.