Home / 77,498.20-115,955.70-51,254.20

Finding the Fourth Proportional to 77,498.20, 115,955.70 and 51,254.20

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Solution

The fourth proportional to 77,498.20, 115,955.70 and 51,254.20 is: 76,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,498.20 : 115,955.70 = 51,254.20 : x
  2. Step 2: Convert to fraction form
    77,498.20/115,955.70 = 51,254.20/x
  3. Step 3: Cross multiply
    77,498.20x = 115,955.70 × 51,254.20
  4. Step 4: Simplify right side
    77,498.20x = 5,943,216,638.94
  5. Step 5: Solve for x
    x = 5,943,216,638.94/77,498.20
  6. Step 6: Final answer
    x = 76,688.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.