Home / 56,059.88-77,362.32-30,909.40

Finding the Fourth Proportional to 56,059.88, 77,362.32 and 30,909.40

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Solution

The fourth proportional to 56,059.88, 77,362.32 and 30,909.40 is: 42,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,059.88 : 77,362.32 = 30,909.40 : x
  2. Step 2: Convert to fraction form
    56,059.88/77,362.32 = 30,909.40/x
  3. Step 3: Cross multiply
    56,059.88x = 77,362.32 × 30,909.40
  4. Step 4: Simplify right side
    56,059.88x = 2,391,222,893.81
  5. Step 5: Solve for x
    x = 2,391,222,893.81/56,059.88
  6. Step 6: Final answer
    x = 42,654.80

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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.