Home / 86,389.76-119,220.30-50,581.28

Finding the Fourth Proportional to 86,389.76, 119,220.30 and 50,581.28

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Solution

The fourth proportional to 86,389.76, 119,220.30 and 50,581.28 is: 69,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389.76 : 119,220.30 = 50,581.28 : x
  2. Step 2: Convert to fraction form
    86,389.76/119,220.30 = 50,581.28/x
  3. Step 3: Cross multiply
    86,389.76x = 119,220.30 × 50,581.28
  4. Step 4: Simplify right side
    86,389.76x = 6,030,314,779.88
  5. Step 5: Solve for x
    x = 6,030,314,779.88/86,389.76
  6. Step 6: Final answer
    x = 69,803.59

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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.