Home / 76,343.76-105,352.92-42,352.08

Finding the Fourth Proportional to 76,343.76, 105,352.92 and 42,352.08

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Solution

The fourth proportional to 76,343.76, 105,352.92 and 42,352.08 is: 58,445.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,343.76 : 105,352.92 = 42,352.08 : x
  2. Step 2: Convert to fraction form
    76,343.76/105,352.92 = 42,352.08/x
  3. Step 3: Cross multiply
    76,343.76x = 105,352.92 × 42,352.08
  4. Step 4: Simplify right side
    76,343.76x = 4,461,915,296.07
  5. Step 5: Solve for x
    x = 4,461,915,296.07/76,343.76
  6. Step 6: Final answer
    x = 58,445.06

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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.