Home / 56,079.52-77,389.76-30,930.64

Finding the Fourth Proportional to 56,079.52, 77,389.76 and 30,930.64

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Solution

The fourth proportional to 56,079.52, 77,389.76 and 30,930.64 is: 42,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,079.52 : 77,389.76 = 30,930.64 : x
  2. Step 2: Convert to fraction form
    56,079.52/77,389.76 = 30,930.64/x
  3. Step 3: Cross multiply
    56,079.52x = 77,389.76 × 30,930.64
  4. Step 4: Simplify right side
    56,079.52x = 2,393,714,806.25
  5. Step 5: Solve for x
    x = 2,393,714,806.25/56,079.52
  6. Step 6: Final answer
    x = 42,684.30

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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.