Home / 86,484.60-119,378.40-50,686.20

Finding the Fourth Proportional to 86,484.60, 119,378.40 and 50,686.20

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Solution

The fourth proportional to 86,484.60, 119,378.40 and 50,686.20 is: 69,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,484.60 : 119,378.40 = 50,686.20 : x
  2. Step 2: Convert to fraction form
    86,484.60/119,378.40 = 50,686.20/x
  3. Step 3: Cross multiply
    86,484.60x = 119,378.40 × 50,686.20
  4. Step 4: Simplify right side
    86,484.60x = 6,050,837,458.08
  5. Step 5: Solve for x
    x = 6,050,837,458.08/86,484.60
  6. Step 6: Final answer
    x = 69,964.33

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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.