Home / 91,577.10-137,254.93-47,179.63

Finding the Fourth Proportional to 91,577.10, 137,254.93 and 47,179.63

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Solution

The fourth proportional to 91,577.10, 137,254.93 and 47,179.63 is: 70,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,577.10 : 137,254.93 = 47,179.63 : x
  2. Step 2: Convert to fraction form
    91,577.10/137,254.93 = 47,179.63/x
  3. Step 3: Cross multiply
    91,577.10x = 137,254.93 × 47,179.63
  4. Step 4: Simplify right side
    91,577.10x = 6,475,636,999.39
  5. Step 5: Solve for x
    x = 6,475,636,999.39/91,577.10
  6. Step 6: Final answer
    x = 70,712.41

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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.