Home / 81,545.16-112,484.53-51,282.48

Finding the Fourth Proportional to 81,545.16, 112,484.53 and 51,282.48

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Solution

The fourth proportional to 81,545.16, 112,484.53 and 51,282.48 is: 70,739.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.16 : 112,484.53 = 51,282.48 : x
  2. Step 2: Convert to fraction form
    81,545.16/112,484.53 = 51,282.48/x
  3. Step 3: Cross multiply
    81,545.16x = 112,484.53 × 51,282.48
  4. Step 4: Simplify right side
    81,545.16x = 5,768,485,660.03
  5. Step 5: Solve for x
    x = 5,768,485,660.03/81,545.16
  6. Step 6: Final answer
    x = 70,739.77

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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.