Home / 77,326.80-106,718.40-43,335.12

Finding the Fourth Proportional to 77,326.80, 106,718.40 and 43,335.12

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Solution

The fourth proportional to 77,326.80, 106,718.40 and 43,335.12 is: 59,806.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,326.80 : 106,718.40 = 43,335.12 : x
  2. Step 2: Convert to fraction form
    77,326.80/106,718.40 = 43,335.12/x
  3. Step 3: Cross multiply
    77,326.80x = 106,718.40 × 43,335.12
  4. Step 4: Simplify right side
    77,326.80x = 4,624,654,670.21
  5. Step 5: Solve for x
    x = 4,624,654,670.21/77,326.80
  6. Step 6: Final answer
    x = 59,806.62

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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.