Home / 84,121.08-126,176.67-31,526.16

Finding the Fourth Proportional to 84,121.08, 126,176.67 and 31,526.16

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Solution

The fourth proportional to 84,121.08, 126,176.67 and 31,526.16 is: 47,287.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,121.08 : 126,176.67 = 31,526.16 : x
  2. Step 2: Convert to fraction form
    84,121.08/126,176.67 = 31,526.16/x
  3. Step 3: Cross multiply
    84,121.08x = 126,176.67 × 31,526.16
  4. Step 4: Simplify right side
    84,121.08x = 3,977,865,886.69
  5. Step 5: Solve for x
    x = 3,977,865,886.69/84,121.08
  6. Step 6: Final answer
    x = 47,287.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.