Home / 70,756.69-97,644.23-38,925.60

Finding the Fourth Proportional to 70,756.69, 97,644.23 and 38,925.60

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Solution

The fourth proportional to 70,756.69, 97,644.23 and 38,925.60 is: 53,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,756.69 : 97,644.23 = 38,925.60 : x
  2. Step 2: Convert to fraction form
    70,756.69/97,644.23 = 38,925.60/x
  3. Step 3: Cross multiply
    70,756.69x = 97,644.23 × 38,925.60
  4. Step 4: Simplify right side
    70,756.69x = 3,800,860,043.42
  5. Step 5: Solve for x
    x = 3,800,860,043.42/70,756.69
  6. Step 6: Final answer
    x = 53,717.32

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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.