Home / 90,936.51-136,405.02-31,772.18

Finding the Fourth Proportional to 90,936.51, 136,405.02 and 31,772.18

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Solution

The fourth proportional to 90,936.51, 136,405.02 and 31,772.18 is: 47,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,936.51 : 136,405.02 = 31,772.18 : x
  2. Step 2: Convert to fraction form
    90,936.51/136,405.02 = 31,772.18/x
  3. Step 3: Cross multiply
    90,936.51x = 136,405.02 × 31,772.18
  4. Step 4: Simplify right side
    90,936.51x = 4,333,884,166.32
  5. Step 5: Solve for x
    x = 4,333,884,166.32/90,936.51
  6. Step 6: Final answer
    x = 47,658.35

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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.