Home / 99,574.21-137,411.63-54,252.05

Finding the Fourth Proportional to 99,574.21, 137,411.63 and 54,252.05

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Solution

The fourth proportional to 99,574.21, 137,411.63 and 54,252.05 is: 74,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,574.21 : 137,411.63 = 54,252.05 : x
  2. Step 2: Convert to fraction form
    99,574.21/137,411.63 = 54,252.05/x
  3. Step 3: Cross multiply
    99,574.21x = 137,411.63 × 54,252.05
  4. Step 4: Simplify right side
    99,574.21x = 7,454,862,621.34
  5. Step 5: Solve for x
    x = 7,454,862,621.34/99,574.21
  6. Step 6: Final answer
    x = 74,867.40

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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.