Home / 56,420.08-77,858.04-30,925.90

Finding the Fourth Proportional to 56,420.08, 77,858.04 and 30,925.90

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Solution

The fourth proportional to 56,420.08, 77,858.04 and 30,925.90 is: 42,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,420.08 : 77,858.04 = 30,925.90 : x
  2. Step 2: Convert to fraction form
    56,420.08/77,858.04 = 30,925.90/x
  3. Step 3: Cross multiply
    56,420.08x = 77,858.04 × 30,925.90
  4. Step 4: Simplify right side
    56,420.08x = 2,407,829,959.24
  5. Step 5: Solve for x
    x = 2,407,829,959.24/56,420.08
  6. Step 6: Final answer
    x = 42,676.83

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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.