Home / 77,931.36-107,550.48-44,397.60

Finding the Fourth Proportional to 77,931.36, 107,550.48 and 44,397.60

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Solution

The fourth proportional to 77,931.36, 107,550.48 and 44,397.60 is: 61,271.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,931.36 : 107,550.48 = 44,397.60 : x
  2. Step 2: Convert to fraction form
    77,931.36/107,550.48 = 44,397.60/x
  3. Step 3: Cross multiply
    77,931.36x = 107,550.48 × 44,397.60
  4. Step 4: Simplify right side
    77,931.36x = 4,774,983,190.85
  5. Step 5: Solve for x
    x = 4,774,983,190.85/77,931.36
  6. Step 6: Final answer
    x = 61,271.65

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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.