Home / 77,879.04-107,473.02-42,069.06

Finding the Fourth Proportional to 77,879.04, 107,473.02 and 42,069.06

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Solution

The fourth proportional to 77,879.04, 107,473.02 and 42,069.06 is: 58,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,879.04 : 107,473.02 = 42,069.06 : x
  2. Step 2: Convert to fraction form
    77,879.04/107,473.02 = 42,069.06/x
  3. Step 3: Cross multiply
    77,879.04x = 107,473.02 × 42,069.06
  4. Step 4: Simplify right side
    77,879.04x = 4,521,288,926.76
  5. Step 5: Solve for x
    x = 4,521,288,926.76/77,879.04
  6. Step 6: Final answer
    x = 58,055.27

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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.