Home / 90,862.79-136,322.09-46,520.68

Finding the Fourth Proportional to 90,862.79, 136,322.09 and 46,520.68

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Solution

The fourth proportional to 90,862.79, 136,322.09 and 46,520.68 is: 69,795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,862.79 : 136,322.09 = 46,520.68 : x
  2. Step 2: Convert to fraction form
    90,862.79/136,322.09 = 46,520.68/x
  3. Step 3: Cross multiply
    90,862.79x = 136,322.09 × 46,520.68
  4. Step 4: Simplify right side
    90,862.79x = 6,341,796,182.47
  5. Step 5: Solve for x
    x = 6,341,796,182.47/90,862.79
  6. Step 6: Final answer
    x = 69,795.31

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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.