Home / 90,841.03-136,283.36-28,511.53

Finding the Fourth Proportional to 90,841.03, 136,283.36 and 28,511.53

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Solution

The fourth proportional to 90,841.03, 136,283.36 and 28,511.53 is: 42,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,841.03 : 136,283.36 = 28,511.53 : x
  2. Step 2: Convert to fraction form
    90,841.03/136,283.36 = 28,511.53/x
  3. Step 3: Cross multiply
    90,841.03x = 136,283.36 × 28,511.53
  4. Step 4: Simplify right side
    90,841.03x = 3,885,646,964.58
  5. Step 5: Solve for x
    x = 3,885,646,964.58/90,841.03
  6. Step 6: Final answer
    x = 42,774.14

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1.5x scale

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.