Home / 84,739.80-127,130.45-39,126.17

Finding the Fourth Proportional to 84,739.80, 127,130.45 and 39,126.17

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Solution

The fourth proportional to 84,739.80, 127,130.45 and 39,126.17 is: 58,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,739.80 : 127,130.45 = 39,126.17 : x
  2. Step 2: Convert to fraction form
    84,739.80/127,130.45 = 39,126.17/x
  3. Step 3: Cross multiply
    84,739.80x = 127,130.45 × 39,126.17
  4. Step 4: Simplify right side
    84,739.80x = 4,974,127,721.07
  5. Step 5: Solve for x
    x = 4,974,127,721.07/84,739.80
  6. Step 6: Final answer
    x = 58,698.83

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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.