Home / 76,340.18-105,350.08-42,350.89

Finding the Fourth Proportional to 76,340.18, 105,350.08 and 42,350.89

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Solution

The fourth proportional to 76,340.18, 105,350.08 and 42,350.89 is: 58,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,340.18 : 105,350.08 = 42,350.89 : x
  2. Step 2: Convert to fraction form
    76,340.18/105,350.08 = 42,350.89/x
  3. Step 3: Cross multiply
    76,340.18x = 105,350.08 × 42,350.89
  4. Step 4: Simplify right side
    76,340.18x = 4,461,669,649.57
  5. Step 5: Solve for x
    x = 4,461,669,649.57/76,340.18
  6. Step 6: Final answer
    x = 58,444.58

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1.5x scale

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.