Home / 90,341.16-135,511.79-28,011.66

Finding the Fourth Proportional to 90,341.16, 135,511.79 and 28,011.66

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Solution

The fourth proportional to 90,341.16, 135,511.79 and 28,011.66 is: 42,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,341.16 : 135,511.79 = 28,011.66 : x
  2. Step 2: Convert to fraction form
    90,341.16/135,511.79 = 28,011.66/x
  3. Step 3: Cross multiply
    90,341.16x = 135,511.79 × 28,011.66
  4. Step 4: Simplify right side
    90,341.16x = 3,795,909,539.24
  5. Step 5: Solve for x
    x = 3,795,909,539.24/90,341.16
  6. Step 6: Final answer
    x = 42,017.50

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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.