Home / 90,833.12-136,271.57-28,503.62

Finding the Fourth Proportional to 90,833.12, 136,271.57 and 28,503.62

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Solution

The fourth proportional to 90,833.12, 136,271.57 and 28,503.62 is: 42,762.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,833.12 : 136,271.57 = 28,503.62 : x
  2. Step 2: Convert to fraction form
    90,833.12/136,271.57 = 28,503.62/x
  3. Step 3: Cross multiply
    90,833.12x = 136,271.57 × 28,503.62
  4. Step 4: Simplify right side
    90,833.12x = 3,884,232,224.21
  5. Step 5: Solve for x
    x = 3,884,232,224.21/90,833.12
  6. Step 6: Final answer
    x = 42,762.29

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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.