Home / 86,485.12-119,349.72-48,759.40

Finding the Fourth Proportional to 86,485.12, 119,349.72 and 48,759.40

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Solution

The fourth proportional to 86,485.12, 119,349.72 and 48,759.40 is: 67,288.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.12 : 119,349.72 = 48,759.40 : x
  2. Step 2: Convert to fraction form
    86,485.12/119,349.72 = 48,759.40/x
  3. Step 3: Cross multiply
    86,485.12x = 119,349.72 × 48,759.40
  4. Step 4: Simplify right side
    86,485.12x = 5,819,420,737.37
  5. Step 5: Solve for x
    x = 5,819,420,737.37/86,485.12
  6. Step 6: Final answer
    x = 67,288.12

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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.