Home / 77,924.84-107,536.76-42,114.79

Finding the Fourth Proportional to 77,924.84, 107,536.76 and 42,114.79

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Solution

The fourth proportional to 77,924.84, 107,536.76 and 42,114.79 is: 58,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,924.84 : 107,536.76 = 42,114.79 : x
  2. Step 2: Convert to fraction form
    77,924.84/107,536.76 = 42,114.79/x
  3. Step 3: Cross multiply
    77,924.84x = 107,536.76 × 42,114.79
  4. Step 4: Simplify right side
    77,924.84x = 4,528,887,778.46
  5. Step 5: Solve for x
    x = 4,528,887,778.46/77,924.84
  6. Step 6: Final answer
    x = 58,118.67

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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.