Home / 76,307.04-105,299.37-42,313.50

Finding the Fourth Proportional to 76,307.04, 105,299.37 and 42,313.50

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Solution

The fourth proportional to 76,307.04, 105,299.37 and 42,313.50 is: 58,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,307.04 : 105,299.37 = 42,313.50 : x
  2. Step 2: Convert to fraction form
    76,307.04/105,299.37 = 42,313.50/x
  3. Step 3: Cross multiply
    76,307.04x = 105,299.37 × 42,313.50
  4. Step 4: Simplify right side
    76,307.04x = 4,455,584,892.50
  5. Step 5: Solve for x
    x = 4,455,584,892.50/76,307.04
  6. Step 6: Final answer
    x = 58,390.22

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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.