Home / 90,739.61-136,137.08-46,397.51

Finding the Fourth Proportional to 90,739.61, 136,137.08 and 46,397.51

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Solution

The fourth proportional to 90,739.61, 136,137.08 and 46,397.51 is: 69,610.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,739.61 : 136,137.08 = 46,397.51 : x
  2. Step 2: Convert to fraction form
    90,739.61/136,137.08 = 46,397.51/x
  3. Step 3: Cross multiply
    90,739.61x = 136,137.08 × 46,397.51
  4. Step 4: Simplify right side
    90,739.61x = 6,316,420,618.00
  5. Step 5: Solve for x
    x = 6,316,420,618.00/90,739.61
  6. Step 6: Final answer
    x = 69,610.40

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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.