Home / 56,155.77-77,424.93-35,979.48

Finding the Fourth Proportional to 56,155.77, 77,424.93 and 35,979.48

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Solution

The fourth proportional to 56,155.77, 77,424.93 and 35,979.48 is: 49,606.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,155.77 : 77,424.93 = 35,979.48 : x
  2. Step 2: Convert to fraction form
    56,155.77/77,424.93 = 35,979.48/x
  3. Step 3: Cross multiply
    56,155.77x = 77,424.93 × 35,979.48
  4. Step 4: Simplify right side
    56,155.77x = 2,785,708,720.44
  5. Step 5: Solve for x
    x = 2,785,708,720.44/56,155.77
  6. Step 6: Final answer
    x = 49,606.81

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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.