Home / 56,398.90-77,826.86-30,904.96

Finding the Fourth Proportional to 56,398.90, 77,826.86 and 30,904.96

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Solution

The fourth proportional to 56,398.90, 77,826.86 and 30,904.96 is: 42,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,398.90 : 77,826.86 = 30,904.96 : x
  2. Step 2: Convert to fraction form
    56,398.90/77,826.86 = 30,904.96/x
  3. Step 3: Cross multiply
    56,398.90x = 77,826.86 × 30,904.96
  4. Step 4: Simplify right side
    56,398.90x = 2,405,235,995.23
  5. Step 5: Solve for x
    x = 2,405,235,995.23/56,398.90
  6. Step 6: Final answer
    x = 42,646.86

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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.