Home / 90,731.36-136,124.69-46,389.24

Finding the Fourth Proportional to 90,731.36, 136,124.69 and 46,389.24

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Solution

The fourth proportional to 90,731.36, 136,124.69 and 46,389.24 is: 69,598.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,731.36 : 136,124.69 = 46,389.24 : x
  2. Step 2: Convert to fraction form
    90,731.36/136,124.69 = 46,389.24/x
  3. Step 3: Cross multiply
    90,731.36x = 136,124.69 × 46,389.24
  4. Step 4: Simplify right side
    90,731.36x = 6,314,720,682.39
  5. Step 5: Solve for x
    x = 6,314,720,682.39/90,731.36
  6. Step 6: Final answer
    x = 69,598.00

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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.