Home / 77,962.42-107,637.34-54,080.74

Finding the Fourth Proportional to 77,962.42, 107,637.34 and 54,080.74

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Solution

The fourth proportional to 77,962.42, 107,637.34 and 54,080.74 is: 74,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,962.42 : 107,637.34 = 54,080.74 : x
  2. Step 2: Convert to fraction form
    77,962.42/107,637.34 = 54,080.74/x
  3. Step 3: Cross multiply
    77,962.42x = 107,637.34 × 54,080.74
  4. Step 4: Simplify right side
    77,962.42x = 5,821,106,998.83
  5. Step 5: Solve for x
    x = 5,821,106,998.83/77,962.42
  6. Step 6: Final answer
    x = 74,665.55

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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.