Home / 76,528.87-105,609.15-42,536.49

Finding the Fourth Proportional to 76,528.87, 105,609.15 and 42,536.49

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Solution

The fourth proportional to 76,528.87, 105,609.15 and 42,536.49 is: 58,699.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,528.87 : 105,609.15 = 42,536.49 : x
  2. Step 2: Convert to fraction form
    76,528.87/105,609.15 = 42,536.49/x
  3. Step 3: Cross multiply
    76,528.87x = 105,609.15 × 42,536.49
  4. Step 4: Simplify right side
    76,528.87x = 4,492,242,552.88
  5. Step 5: Solve for x
    x = 4,492,242,552.88/76,528.87
  6. Step 6: Final answer
    x = 58,699.97

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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.