Home / 82,011.12-122,567.32-59,871.12

Finding the Fourth Proportional to 82,011.12, 122,567.32 and 59,871.12

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Solution

The fourth proportional to 82,011.12, 122,567.32 and 59,871.12 is: 89,478.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,011.12 : 122,567.32 = 59,871.12 : x
  2. Step 2: Convert to fraction form
    82,011.12/122,567.32 = 59,871.12/x
  3. Step 3: Cross multiply
    82,011.12x = 122,567.32 × 59,871.12
  4. Step 4: Simplify right side
    82,011.12x = 7,338,242,723.80
  5. Step 5: Solve for x
    x = 7,338,242,723.80/82,011.12
  6. Step 6: Final answer
    x = 89,478.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.