Home / 86,822.40-119,836.80-49,108.80

Finding the Fourth Proportional to 86,822.40, 119,836.80 and 49,108.80

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Solution

The fourth proportional to 86,822.40, 119,836.80 and 49,108.80 is: 67,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,822.40 : 119,836.80 = 49,108.80 : x
  2. Step 2: Convert to fraction form
    86,822.40/119,836.80 = 49,108.80/x
  3. Step 3: Cross multiply
    86,822.40x = 119,836.80 × 49,108.80
  4. Step 4: Simplify right side
    86,822.40x = 5,885,041,443.84
  5. Step 5: Solve for x
    x = 5,885,041,443.84/86,822.40
  6. Step 6: Final answer
    x = 67,782.52

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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.