Home / 76,366.15-105,385.85-42,374.77

Finding the Fourth Proportional to 76,366.15, 105,385.85 and 42,374.77

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Solution

The fourth proportional to 76,366.15, 105,385.85 and 42,374.77 is: 58,477.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,366.15 : 105,385.85 = 42,374.77 : x
  2. Step 2: Convert to fraction form
    76,366.15/105,385.85 = 42,374.77/x
  3. Step 3: Cross multiply
    76,366.15x = 105,385.85 × 42,374.77
  4. Step 4: Simplify right side
    76,366.15x = 4,465,701,155.00
  5. Step 5: Solve for x
    x = 4,465,701,155.00/76,366.15
  6. Step 6: Final answer
    x = 58,477.50

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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.