Home / 76,880.57-106,017.56-51,386.98

Finding the Fourth Proportional to 76,880.57, 106,017.56 and 51,386.98

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Solution

The fourth proportional to 76,880.57, 106,017.56 and 51,386.98 is: 70,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,880.57 : 106,017.56 = 51,386.98 : x
  2. Step 2: Convert to fraction form
    76,880.57/106,017.56 = 51,386.98/x
  3. Step 3: Cross multiply
    76,880.57x = 106,017.56 × 51,386.98
  4. Step 4: Simplify right side
    76,880.57x = 5,447,922,403.05
  5. Step 5: Solve for x
    x = 5,447,922,403.05/76,880.57
  6. Step 6: Final answer
    x = 70,862.15

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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.