Home / 74,378.79-111,518.64-26,987.74

Finding the Fourth Proportional to 74,378.79, 111,518.64 and 26,987.74

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Solution

The fourth proportional to 74,378.79, 111,518.64 and 26,987.74 is: 40,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,378.79 : 111,518.64 = 26,987.74 : x
  2. Step 2: Convert to fraction form
    74,378.79/111,518.64 = 26,987.74/x
  3. Step 3: Cross multiply
    74,378.79x = 111,518.64 × 26,987.74
  4. Step 4: Simplify right side
    74,378.79x = 3,009,635,782.68
  5. Step 5: Solve for x
    x = 3,009,635,782.68/74,378.79
  6. Step 6: Final answer
    x = 40,463.63

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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.