Home / 90,731.84-136,125.43-46,389.74

Finding the Fourth Proportional to 90,731.84, 136,125.43 and 46,389.74

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Solution

The fourth proportional to 90,731.84, 136,125.43 and 46,389.74 is: 69,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,731.84 : 136,125.43 = 46,389.74 : x
  2. Step 2: Convert to fraction form
    90,731.84/136,125.43 = 46,389.74/x
  3. Step 3: Cross multiply
    90,731.84x = 136,125.43 × 46,389.74
  4. Step 4: Simplify right side
    90,731.84x = 6,314,823,305.09
  5. Step 5: Solve for x
    x = 6,314,823,305.09/90,731.84
  6. Step 6: Final answer
    x = 69,598.76

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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.