Home / 84,955.23-127,404.90-28,780.92

Finding the Fourth Proportional to 84,955.23, 127,404.90 and 28,780.92

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Solution

The fourth proportional to 84,955.23, 127,404.90 and 28,780.92 is: 43,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,955.23 : 127,404.90 = 28,780.92 : x
  2. Step 2: Convert to fraction form
    84,955.23/127,404.90 = 28,780.92/x
  3. Step 3: Cross multiply
    84,955.23x = 127,404.90 × 28,780.92
  4. Step 4: Simplify right side
    84,955.23x = 3,666,830,234.51
  5. Step 5: Solve for x
    x = 3,666,830,234.51/84,955.23
  6. Step 6: Final answer
    x = 43,161.91

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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.