Home / 56,145.44-77,477.40-30,646.74

Finding the Fourth Proportional to 56,145.44, 77,477.40 and 30,646.74

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Solution

The fourth proportional to 56,145.44, 77,477.40 and 30,646.74 is: 42,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,145.44 : 77,477.40 = 30,646.74 : x
  2. Step 2: Convert to fraction form
    56,145.44/77,477.40 = 30,646.74/x
  3. Step 3: Cross multiply
    56,145.44x = 77,477.40 × 30,646.74
  4. Step 4: Simplify right side
    56,145.44x = 2,374,429,733.68
  5. Step 5: Solve for x
    x = 2,374,429,733.68/56,145.44
  6. Step 6: Final answer
    x = 42,290.70

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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.