Home / 51,018.58-70,405.18-28,356.99

Finding the Fourth Proportional to 51,018.58, 70,405.18 and 28,356.99

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Solution

The fourth proportional to 51,018.58, 70,405.18 and 28,356.99 is: 39,132.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,018.58 : 70,405.18 = 28,356.99 : x
  2. Step 2: Convert to fraction form
    51,018.58/70,405.18 = 28,356.99/x
  3. Step 3: Cross multiply
    51,018.58x = 70,405.18 × 28,356.99
  4. Step 4: Simplify right side
    51,018.58x = 1,996,478,985.21
  5. Step 5: Solve for x
    x = 1,996,478,985.21/51,018.58
  6. Step 6: Final answer
    x = 39,132.39

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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.