Home / 81,362.04-112,331.84-55,860.20

Finding the Fourth Proportional to 81,362.04, 112,331.84 and 55,860.20

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Solution

The fourth proportional to 81,362.04, 112,331.84 and 55,860.20 is: 77,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,362.04 : 112,331.84 = 55,860.20 : x
  2. Step 2: Convert to fraction form
    81,362.04/112,331.84 = 55,860.20/x
  3. Step 3: Cross multiply
    81,362.04x = 112,331.84 × 55,860.20
  4. Step 4: Simplify right side
    81,362.04x = 6,274,879,048.77
  5. Step 5: Solve for x
    x = 6,274,879,048.77/81,362.04
  6. Step 6: Final answer
    x = 77,122.93

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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.