Home / 94,698.64-142,070.20-28,139.28

Finding the Fourth Proportional to 94,698.64, 142,070.20 and 28,139.28

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Solution

The fourth proportional to 94,698.64, 142,070.20 and 28,139.28 is: 42,215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,698.64 : 142,070.20 = 28,139.28 : x
  2. Step 2: Convert to fraction form
    94,698.64/142,070.20 = 28,139.28/x
  3. Step 3: Cross multiply
    94,698.64x = 142,070.20 × 28,139.28
  4. Step 4: Simplify right side
    94,698.64x = 3,997,753,137.46
  5. Step 5: Solve for x
    x = 3,997,753,137.46/94,698.64
  6. Step 6: Final answer
    x = 42,215.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.