Home / 76,625.14-105,718.08-46,400.80

Finding the Fourth Proportional to 76,625.14, 105,718.08 and 46,400.80

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Solution

The fourth proportional to 76,625.14, 105,718.08 and 46,400.80 is: 64,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,625.14 : 105,718.08 = 46,400.80 : x
  2. Step 2: Convert to fraction form
    76,625.14/105,718.08 = 46,400.80/x
  3. Step 3: Cross multiply
    76,625.14x = 105,718.08 × 46,400.80
  4. Step 4: Simplify right side
    76,625.14x = 4,905,403,486.46
  5. Step 5: Solve for x
    x = 4,905,403,486.46/76,625.14
  6. Step 6: Final answer
    x = 64,018.20

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1.5x scale

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.