Home / 98,842.34-136,412.20-56,407.25

Finding the Fourth Proportional to 98,842.34, 136,412.20 and 56,407.25

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Solution

The fourth proportional to 98,842.34, 136,412.20 and 56,407.25 is: 77,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,842.34 : 136,412.20 = 56,407.25 : x
  2. Step 2: Convert to fraction form
    98,842.34/136,412.20 = 56,407.25/x
  3. Step 3: Cross multiply
    98,842.34x = 136,412.20 × 56,407.25
  4. Step 4: Simplify right side
    98,842.34x = 7,694,637,479.99
  5. Step 5: Solve for x
    x = 7,694,637,479.99/98,842.34
  6. Step 6: Final answer
    x = 77,847.58

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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.