Home / 77,555.86-107,010.47-45,275.83

Finding the Fourth Proportional to 77,555.86, 107,010.47 and 45,275.83

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Solution

The fourth proportional to 77,555.86, 107,010.47 and 45,275.83 is: 62,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,555.86 : 107,010.47 = 45,275.83 : x
  2. Step 2: Convert to fraction form
    77,555.86/107,010.47 = 45,275.83/x
  3. Step 3: Cross multiply
    77,555.86x = 107,010.47 × 45,275.83
  4. Step 4: Simplify right side
    77,555.86x = 4,844,987,693.60
  5. Step 5: Solve for x
    x = 4,844,987,693.60/77,555.86
  6. Step 6: Final answer
    x = 62,470.94

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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.