Home / 90,653.02-125,114.16-56,696.20

Finding the Fourth Proportional to 90,653.02, 125,114.16 and 56,696.20

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Solution

The fourth proportional to 90,653.02, 125,114.16 and 56,696.20 is: 78,248.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,653.02 : 125,114.16 = 56,696.20 : x
  2. Step 2: Convert to fraction form
    90,653.02/125,114.16 = 56,696.20/x
  3. Step 3: Cross multiply
    90,653.02x = 125,114.16 × 56,696.20
  4. Step 4: Simplify right side
    90,653.02x = 7,093,497,438.19
  5. Step 5: Solve for x
    x = 7,093,497,438.19/90,653.02
  6. Step 6: Final answer
    x = 78,248.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.