Home / 76,959.67-115,476.05-53,303.62

Finding the Fourth Proportional to 76,959.67, 115,476.05 and 53,303.62

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Solution

The fourth proportional to 76,959.67, 115,476.05 and 53,303.62 is: 79,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,959.67 : 115,476.05 = 53,303.62 : x
  2. Step 2: Convert to fraction form
    76,959.67/115,476.05 = 53,303.62/x
  3. Step 3: Cross multiply
    76,959.67x = 115,476.05 × 53,303.62
  4. Step 4: Simplify right side
    76,959.67x = 6,155,291,488.30
  5. Step 5: Solve for x
    x = 6,155,291,488.30/76,959.67
  6. Step 6: Final answer
    x = 79,980.74

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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.