Home / 76,127.40-114,320.70-56,428.20

Finding the Fourth Proportional to 76,127.40, 114,320.70 and 56,428.20

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Solution

The fourth proportional to 76,127.40, 114,320.70 and 56,428.20 is: 84,738.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,127.40 : 114,320.70 = 56,428.20 : x
  2. Step 2: Convert to fraction form
    76,127.40/114,320.70 = 56,428.20/x
  3. Step 3: Cross multiply
    76,127.40x = 114,320.70 × 56,428.20
  4. Step 4: Simplify right side
    76,127.40x = 6,450,911,323.74
  5. Step 5: Solve for x
    x = 6,450,911,323.74/76,127.40
  6. Step 6: Final answer
    x = 84,738.36

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1.5x scale

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.