Home / 56,403.40-77,860.71-38,010.55

Finding the Fourth Proportional to 56,403.40, 77,860.71 and 38,010.55

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Solution

The fourth proportional to 56,403.40, 77,860.71 and 38,010.55 is: 52,470.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,403.40 : 77,860.71 = 38,010.55 : x
  2. Step 2: Convert to fraction form
    56,403.40/77,860.71 = 38,010.55/x
  3. Step 3: Cross multiply
    56,403.40x = 77,860.71 × 38,010.55
  4. Step 4: Simplify right side
    56,403.40x = 2,959,528,410.49
  5. Step 5: Solve for x
    x = 2,959,528,410.49/56,403.40
  6. Step 6: Final answer
    x = 52,470.74

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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.