Home / 99,012.51-136,635.48-55,991.34

Finding the Fourth Proportional to 99,012.51, 136,635.48 and 55,991.34

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Solution

The fourth proportional to 99,012.51, 136,635.48 and 55,991.34 is: 77,267.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,012.51 : 136,635.48 = 55,991.34 : x
  2. Step 2: Convert to fraction form
    99,012.51/136,635.48 = 55,991.34/x
  3. Step 3: Cross multiply
    99,012.51x = 136,635.48 × 55,991.34
  4. Step 4: Simplify right side
    99,012.51x = 7,650,403,616.74
  5. Step 5: Solve for x
    x = 7,650,403,616.74/99,012.51
  6. Step 6: Final answer
    x = 77,267.04

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1.5x scale

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.