Home / 99,686.51-137,569.98-54,366.40

Finding the Fourth Proportional to 99,686.51, 137,569.98 and 54,366.40

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Solution

The fourth proportional to 99,686.51, 137,569.98 and 54,366.40 is: 75,027.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,686.51 : 137,569.98 = 54,366.40 : x
  2. Step 2: Convert to fraction form
    99,686.51/137,569.98 = 54,366.40/x
  3. Step 3: Cross multiply
    99,686.51x = 137,569.98 × 54,366.40
  4. Step 4: Simplify right side
    99,686.51x = 7,479,184,936.51
  5. Step 5: Solve for x
    x = 7,479,184,936.51/99,686.51
  6. Step 6: Final answer
    x = 75,027.05

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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.