Home / 76,476.11-105,533.27-42,486.77

Finding the Fourth Proportional to 76,476.11, 105,533.27 and 42,486.77

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Solution

The fourth proportional to 76,476.11, 105,533.27 and 42,486.77 is: 58,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,476.11 : 105,533.27 = 42,486.77 : x
  2. Step 2: Convert to fraction form
    76,476.11/105,533.27 = 42,486.77/x
  3. Step 3: Cross multiply
    76,476.11x = 105,533.27 × 42,486.77
  4. Step 4: Simplify right side
    76,476.11x = 4,483,767,557.40
  5. Step 5: Solve for x
    x = 4,483,767,557.40/76,476.11
  6. Step 6: Final answer
    x = 58,629.65

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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.