Home / 57,630.86-79,528.12-42,518.08

Finding the Fourth Proportional to 57,630.86, 79,528.12 and 42,518.08

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Solution

The fourth proportional to 57,630.86, 79,528.12 and 42,518.08 is: 58,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,630.86 : 79,528.12 = 42,518.08 : x
  2. Step 2: Convert to fraction form
    57,630.86/79,528.12 = 42,518.08/x
  3. Step 3: Cross multiply
    57,630.86x = 79,528.12 × 42,518.08
  4. Step 4: Simplify right side
    57,630.86x = 3,381,382,968.41
  5. Step 5: Solve for x
    x = 3,381,382,968.41/57,630.86
  6. Step 6: Final answer
    x = 58,673.13

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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.