Home / 76,343.04-105,353.66-42,352.20

Finding the Fourth Proportional to 76,343.04, 105,353.66 and 42,352.20

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Solution

The fourth proportional to 76,343.04, 105,353.66 and 42,352.20 is: 58,446.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,343.04 : 105,353.66 = 42,352.20 : x
  2. Step 2: Convert to fraction form
    76,343.04/105,353.66 = 42,352.20/x
  3. Step 3: Cross multiply
    76,343.04x = 105,353.66 × 42,352.20
  4. Step 4: Simplify right side
    76,343.04x = 4,461,959,384.93
  5. Step 5: Solve for x
    x = 4,461,959,384.93/76,343.04
  6. Step 6: Final answer
    x = 58,446.18

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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.