Home / 79,340.64-109,483.05-45,342.37

Finding the Fourth Proportional to 79,340.64, 109,483.05 and 45,342.37

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Solution

The fourth proportional to 79,340.64, 109,483.05 and 45,342.37 is: 62,568.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,340.64 : 109,483.05 = 45,342.37 : x
  2. Step 2: Convert to fraction form
    79,340.64/109,483.05 = 45,342.37/x
  3. Step 3: Cross multiply
    79,340.64x = 109,483.05 × 45,342.37
  4. Step 4: Simplify right side
    79,340.64x = 4,964,220,961.83
  5. Step 5: Solve for x
    x = 4,964,220,961.83/79,340.64
  6. Step 6: Final answer
    x = 62,568.45

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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.