Home / 86,454.81-129,573.12-46,374.39

Finding the Fourth Proportional to 86,454.81, 129,573.12 and 46,374.39

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Solution

The fourth proportional to 86,454.81, 129,573.12 and 46,374.39 is: 69,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,454.81 : 129,573.12 = 46,374.39 : x
  2. Step 2: Convert to fraction form
    86,454.81/129,573.12 = 46,374.39/x
  3. Step 3: Cross multiply
    86,454.81x = 129,573.12 × 46,374.39
  4. Step 4: Simplify right side
    86,454.81x = 6,008,874,400.40
  5. Step 5: Solve for x
    x = 6,008,874,400.40/86,454.81
  6. Step 6: Final answer
    x = 69,503.07

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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.