Home / 51,017.58-70,403.80-28,355.99

Finding the Fourth Proportional to 51,017.58, 70,403.80 and 28,355.99

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Solution

The fourth proportional to 51,017.58, 70,403.80 and 28,355.99 is: 39,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,017.58 : 70,403.80 = 28,355.99 : x
  2. Step 2: Convert to fraction form
    51,017.58/70,403.80 = 28,355.99/x
  3. Step 3: Cross multiply
    51,017.58x = 70,403.80 × 28,355.99
  4. Step 4: Simplify right side
    51,017.58x = 1,996,369,683.36
  5. Step 5: Solve for x
    x = 1,996,369,683.36/51,017.58
  6. Step 6: Final answer
    x = 39,131.01

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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.