Home / 76,349.80-105,363.36-42,360.52

Finding the Fourth Proportional to 76,349.80, 105,363.36 and 42,360.52

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Solution

The fourth proportional to 76,349.80, 105,363.36 and 42,360.52 is: 58,457.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,349.80 : 105,363.36 = 42,360.52 : x
  2. Step 2: Convert to fraction form
    76,349.80/105,363.36 = 42,360.52/x
  3. Step 3: Cross multiply
    76,349.80x = 105,363.36 × 42,360.52
  4. Step 4: Simplify right side
    76,349.80x = 4,463,246,718.55
  5. Step 5: Solve for x
    x = 4,463,246,718.55/76,349.80
  6. Step 6: Final answer
    x = 58,457.87

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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.