Home / 90,832.76-136,271.02-28,503.26

Finding the Fourth Proportional to 90,832.76, 136,271.02 and 28,503.26

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Solution

The fourth proportional to 90,832.76, 136,271.02 and 28,503.26 is: 42,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,832.76 : 136,271.02 = 28,503.26 : x
  2. Step 2: Convert to fraction form
    90,832.76/136,271.02 = 28,503.26/x
  3. Step 3: Cross multiply
    90,832.76x = 136,271.02 × 28,503.26
  4. Step 4: Simplify right side
    90,832.76x = 3,884,168,313.53
  5. Step 5: Solve for x
    x = 3,884,168,313.53/90,832.76
  6. Step 6: Final answer
    x = 42,761.76

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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.