Home / 56,022.32-77,309.81-30,528.91

Finding the Fourth Proportional to 56,022.32, 77,309.81 and 30,528.91

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Solution

The fourth proportional to 56,022.32, 77,309.81 and 30,528.91 is: 42,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,022.32 : 77,309.81 = 30,528.91 : x
  2. Step 2: Convert to fraction form
    56,022.32/77,309.81 = 30,528.91/x
  3. Step 3: Cross multiply
    56,022.32x = 77,309.81 × 30,528.91
  4. Step 4: Simplify right side
    56,022.32x = 2,360,184,231.61
  5. Step 5: Solve for x
    x = 2,360,184,231.61/56,022.32
  6. Step 6: Final answer
    x = 42,129.36

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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.