Home / 79,220-109,306.54-46,964.80

Finding the Fourth Proportional to 79,220, 109,306.54 and 46,964.80

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Solution

The fourth proportional to 79,220, 109,306.54 and 46,964.80 is: 64,801.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,220 : 109,306.54 = 46,964.80 : x
  2. Step 2: Convert to fraction form
    79,220/109,306.54 = 46,964.80/x
  3. Step 3: Cross multiply
    79,220x = 109,306.54 × 46,964.80
  4. Step 4: Simplify right side
    79,220x = 5,133,559,789.79
  5. Step 5: Solve for x
    x = 5,133,559,789.79/79,220
  6. Step 6: Final answer
    x = 64,801.31

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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.