Home / 98,581.08-136,057.50-62,787

Finding the Fourth Proportional to 98,581.08, 136,057.50 and 62,787

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Solution

The fourth proportional to 98,581.08, 136,057.50 and 62,787 is: 86,656.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,581.08 : 136,057.50 = 62,787 : x
  2. Step 2: Convert to fraction form
    98,581.08/136,057.50 = 62,787/x
  3. Step 3: Cross multiply
    98,581.08x = 136,057.50 × 62,787
  4. Step 4: Simplify right side
    98,581.08x = 8,542,642,252.50
  5. Step 5: Solve for x
    x = 8,542,642,252.50/98,581.08
  6. Step 6: Final answer
    x = 86,656.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.