Home / 90,851.63-136,278.65-28,522.13

Finding the Fourth Proportional to 90,851.63, 136,278.65 and 28,522.13

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Solution

The fourth proportional to 90,851.63, 136,278.65 and 28,522.13 is: 42,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,851.63 : 136,278.65 = 28,522.13 : x
  2. Step 2: Convert to fraction form
    90,851.63/136,278.65 = 28,522.13/x
  3. Step 3: Cross multiply
    90,851.63x = 136,278.65 × 28,522.13
  4. Step 4: Simplify right side
    90,851.63x = 3,886,956,761.44
  5. Step 5: Solve for x
    x = 3,886,956,761.44/90,851.63
  6. Step 6: Final answer
    x = 42,783.57

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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.