Home / 84,674.04-127,012.86-28,515.84

Finding the Fourth Proportional to 84,674.04, 127,012.86 and 28,515.84

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Solution

The fourth proportional to 84,674.04, 127,012.86 and 28,515.84 is: 42,774.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,674.04 : 127,012.86 = 28,515.84 : x
  2. Step 2: Convert to fraction form
    84,674.04/127,012.86 = 28,515.84/x
  3. Step 3: Cross multiply
    84,674.04x = 127,012.86 × 28,515.84
  4. Step 4: Simplify right side
    84,674.04x = 3,621,878,393.70
  5. Step 5: Solve for x
    x = 3,621,878,393.70/84,674.04
  6. Step 6: Final answer
    x = 42,774.37

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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.