Home / 78,246.39-107,970.12-46,409.07

Finding the Fourth Proportional to 78,246.39, 107,970.12 and 46,409.07

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Solution

The fourth proportional to 78,246.39, 107,970.12 and 46,409.07 is: 64,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,246.39 : 107,970.12 = 46,409.07 : x
  2. Step 2: Convert to fraction form
    78,246.39/107,970.12 = 46,409.07/x
  3. Step 3: Cross multiply
    78,246.39x = 107,970.12 × 46,409.07
  4. Step 4: Simplify right side
    78,246.39x = 5,010,792,624.94
  5. Step 5: Solve for x
    x = 5,010,792,624.94/78,246.39
  6. Step 6: Final answer
    x = 64,038.64

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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.