Home / 90,690.30-136,035.45-62,696.70

Finding the Fourth Proportional to 90,690.30, 136,035.45 and 62,696.70

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Solution

The fourth proportional to 90,690.30, 136,035.45 and 62,696.70 is: 94,045.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,690.30 : 136,035.45 = 62,696.70 : x
  2. Step 2: Convert to fraction form
    90,690.30/136,035.45 = 62,696.70/x
  3. Step 3: Cross multiply
    90,690.30x = 136,035.45 × 62,696.70
  4. Step 4: Simplify right side
    90,690.30x = 8,528,973,798.02
  5. Step 5: Solve for x
    x = 8,528,973,798.02/90,690.30
  6. Step 6: Final answer
    x = 94,045.05

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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.