Home / 81,277.60-112,211.52-51,088.48

Finding the Fourth Proportional to 81,277.60, 112,211.52 and 51,088.48

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Solution

The fourth proportional to 81,277.60, 112,211.52 and 51,088.48 is: 70,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,277.60 : 112,211.52 = 51,088.48 : x
  2. Step 2: Convert to fraction form
    81,277.60/112,211.52 = 51,088.48/x
  3. Step 3: Cross multiply
    81,277.60x = 112,211.52 × 51,088.48
  4. Step 4: Simplify right side
    81,277.60x = 5,732,715,995.29
  5. Step 5: Solve for x
    x = 5,732,715,995.29/81,277.60
  6. Step 6: Final answer
    x = 70,532.55

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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.