Home / 91,714.16-137,393.64-53,671.40

Finding the Fourth Proportional to 91,714.16, 137,393.64 and 53,671.40

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Solution

The fourth proportional to 91,714.16, 137,393.64 and 53,671.40 is: 80,403.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,714.16 : 137,393.64 = 53,671.40 : x
  2. Step 2: Convert to fraction form
    91,714.16/137,393.64 = 53,671.40/x
  3. Step 3: Cross multiply
    91,714.16x = 137,393.64 × 53,671.40
  4. Step 4: Simplify right side
    91,714.16x = 7,374,109,009.90
  5. Step 5: Solve for x
    x = 7,374,109,009.90/91,714.16
  6. Step 6: Final answer
    x = 80,403.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.