Home / 56,357.08-77,772.02-30,863.16

Finding the Fourth Proportional to 56,357.08, 77,772.02 and 30,863.16

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Solution

The fourth proportional to 56,357.08, 77,772.02 and 30,863.16 is: 42,590.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,357.08 : 77,772.02 = 30,863.16 : x
  2. Step 2: Convert to fraction form
    56,357.08/77,772.02 = 30,863.16/x
  3. Step 3: Cross multiply
    56,357.08x = 77,772.02 × 30,863.16
  4. Step 4: Simplify right side
    56,357.08x = 2,400,290,296.78
  5. Step 5: Solve for x
    x = 2,400,290,296.78/56,357.08
  6. Step 6: Final answer
    x = 42,590.75

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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.