Home / 55,939.55-77,196.24-30,445.20

Finding the Fourth Proportional to 55,939.55, 77,196.24 and 30,445.20

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Solution

The fourth proportional to 55,939.55, 77,196.24 and 30,445.20 is: 42,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,939.55 : 77,196.24 = 30,445.20 : x
  2. Step 2: Convert to fraction form
    55,939.55/77,196.24 = 30,445.20/x
  3. Step 3: Cross multiply
    55,939.55x = 77,196.24 × 30,445.20
  4. Step 4: Simplify right side
    55,939.55x = 2,350,254,966.05
  5. Step 5: Solve for x
    x = 2,350,254,966.05/55,939.55
  6. Step 6: Final answer
    x = 42,014.20

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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.