Home / 91,857.39-126,762.12-51,570.15

Finding the Fourth Proportional to 91,857.39, 126,762.12 and 51,570.15

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Solution

The fourth proportional to 91,857.39, 126,762.12 and 51,570.15 is: 71,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,857.39 : 126,762.12 = 51,570.15 : x
  2. Step 2: Convert to fraction form
    91,857.39/126,762.12 = 51,570.15/x
  3. Step 3: Cross multiply
    91,857.39x = 126,762.12 × 51,570.15
  4. Step 4: Simplify right side
    91,857.39x = 6,537,141,542.72
  5. Step 5: Solve for x
    x = 6,537,141,542.72/91,857.39
  6. Step 6: Final answer
    x = 71,166.20

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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.