Home / 90,731.74-136,125.30-46,389.64

Finding the Fourth Proportional to 90,731.74, 136,125.30 and 46,389.64

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Solution

The fourth proportional to 90,731.74, 136,125.30 and 46,389.64 is: 69,598.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,731.74 : 136,125.30 = 46,389.64 : x
  2. Step 2: Convert to fraction form
    90,731.74/136,125.30 = 46,389.64/x
  3. Step 3: Cross multiply
    90,731.74x = 136,125.30 × 46,389.64
  4. Step 4: Simplify right side
    90,731.74x = 6,314,803,661.89
  5. Step 5: Solve for x
    x = 6,314,803,661.89/90,731.74
  6. Step 6: Final answer
    x = 69,598.62

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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.