Home / 99,600.19-137,445.73-54,279.34

Finding the Fourth Proportional to 99,600.19, 137,445.73 and 54,279.34

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Solution

The fourth proportional to 99,600.19, 137,445.73 and 54,279.34 is: 74,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,600.19 : 137,445.73 = 54,279.34 : x
  2. Step 2: Convert to fraction form
    99,600.19/137,445.73 = 54,279.34/x
  3. Step 3: Cross multiply
    99,600.19x = 137,445.73 × 54,279.34
  4. Step 4: Simplify right side
    99,600.19x = 7,460,463,510.22
  5. Step 5: Solve for x
    x = 7,460,463,510.22/99,600.19
  6. Step 6: Final answer
    x = 74,904.11

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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.