Home / 56,419.08-77,856.66-30,924.90

Finding the Fourth Proportional to 56,419.08, 77,856.66 and 30,924.90

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Solution

The fourth proportional to 56,419.08, 77,856.66 and 30,924.90 is: 42,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,419.08 : 77,856.66 = 30,924.90 : x
  2. Step 2: Convert to fraction form
    56,419.08/77,856.66 = 30,924.90/x
  3. Step 3: Cross multiply
    56,419.08x = 77,856.66 × 30,924.90
  4. Step 4: Simplify right side
    56,419.08x = 2,407,709,424.83
  5. Step 5: Solve for x
    x = 2,407,709,424.83/56,419.08
  6. Step 6: Final answer
    x = 42,675.45

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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.