Home / 76,153.85-105,088.89-42,159.95

Finding the Fourth Proportional to 76,153.85, 105,088.89 and 42,159.95

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Solution

The fourth proportional to 76,153.85, 105,088.89 and 42,159.95 is: 58,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,153.85 : 105,088.89 = 42,159.95 : x
  2. Step 2: Convert to fraction form
    76,153.85/105,088.89 = 42,159.95/x
  3. Step 3: Cross multiply
    76,153.85x = 105,088.89 × 42,159.95
  4. Step 4: Simplify right side
    76,153.85x = 4,430,542,347.96
  5. Step 5: Solve for x
    x = 4,430,542,347.96/76,153.85
  6. Step 6: Final answer
    x = 58,178.84

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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.