Home / 77,576.40-107,106.12-59,638.32

Finding the Fourth Proportional to 77,576.40, 107,106.12 and 59,638.32

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Solution

The fourth proportional to 77,576.40, 107,106.12 and 59,638.32 is: 82,339.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,576.40 : 107,106.12 = 59,638.32 : x
  2. Step 2: Convert to fraction form
    77,576.40/107,106.12 = 59,638.32/x
  3. Step 3: Cross multiply
    77,576.40x = 107,106.12 × 59,638.32
  4. Step 4: Simplify right side
    77,576.40x = 6,387,629,058.52
  5. Step 5: Solve for x
    x = 6,387,629,058.52/77,576.40
  6. Step 6: Final answer
    x = 82,339.85

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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.