Home / 77,956.02-116,977.87-42,419.92

Finding the Fourth Proportional to 77,956.02, 116,977.87 and 42,419.92

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Solution

The fourth proportional to 77,956.02, 116,977.87 and 42,419.92 is: 63,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,956.02 : 116,977.87 = 42,419.92 : x
  2. Step 2: Convert to fraction form
    77,956.02/116,977.87 = 42,419.92/x
  3. Step 3: Cross multiply
    77,956.02x = 116,977.87 × 42,419.92
  4. Step 4: Simplify right side
    77,956.02x = 4,962,191,867.08
  5. Step 5: Solve for x
    x = 4,962,191,867.08/77,956.02
  6. Step 6: Final answer
    x = 63,653.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.