Home / 56,057.07-77,354.96-30,903.15

Finding the Fourth Proportional to 56,057.07, 77,354.96 and 30,903.15

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Solution

The fourth proportional to 56,057.07, 77,354.96 and 30,903.15 is: 42,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,057.07 : 77,354.96 = 30,903.15 : x
  2. Step 2: Convert to fraction form
    56,057.07/77,354.96 = 30,903.15/x
  3. Step 3: Cross multiply
    56,057.07x = 77,354.96 × 30,903.15
  4. Step 4: Simplify right side
    56,057.07x = 2,390,511,777.61
  5. Step 5: Solve for x
    x = 2,390,511,777.61/56,057.07
  6. Step 6: Final answer
    x = 42,644.25

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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.