Home / 86,985.77-120,034.30-48,223.21

Finding the Fourth Proportional to 86,985.77, 120,034.30 and 48,223.21

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Solution

The fourth proportional to 86,985.77, 120,034.30 and 48,223.21 is: 66,544.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,985.77 : 120,034.30 = 48,223.21 : x
  2. Step 2: Convert to fraction form
    86,985.77/120,034.30 = 48,223.21/x
  3. Step 3: Cross multiply
    86,985.77x = 120,034.30 × 48,223.21
  4. Step 4: Simplify right side
    86,985.77x = 5,788,439,060.52
  5. Step 5: Solve for x
    x = 5,788,439,060.52/86,985.77
  6. Step 6: Final answer
    x = 66,544.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.