Home / 77,926.76-107,538.95-42,116.77

Finding the Fourth Proportional to 77,926.76, 107,538.95 and 42,116.77

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Solution

The fourth proportional to 77,926.76, 107,538.95 and 42,116.77 is: 58,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,926.76 : 107,538.95 = 42,116.77 : x
  2. Step 2: Convert to fraction form
    77,926.76/107,538.95 = 42,116.77/x
  3. Step 3: Cross multiply
    77,926.76x = 107,538.95 × 42,116.77
  4. Step 4: Simplify right side
    77,926.76x = 4,529,193,223.19
  5. Step 5: Solve for x
    x = 4,529,193,223.19/77,926.76
  6. Step 6: Final answer
    x = 58,121.15

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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.