Home / 56,080.68-77,386.76-30,930.20

Finding the Fourth Proportional to 56,080.68, 77,386.76 and 30,930.20

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Solution

The fourth proportional to 56,080.68, 77,386.76 and 30,930.20 is: 42,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,080.68 : 77,386.76 = 30,930.20 : x
  2. Step 2: Convert to fraction form
    56,080.68/77,386.76 = 30,930.20/x
  3. Step 3: Cross multiply
    56,080.68x = 77,386.76 × 30,930.20
  4. Step 4: Simplify right side
    56,080.68x = 2,393,587,964.15
  5. Step 5: Solve for x
    x = 2,393,587,964.15/56,080.68
  6. Step 6: Final answer
    x = 42,681.15

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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.