Home / 73,117.16-100,902.36-42,902.96

Finding the Fourth Proportional to 73,117.16, 100,902.36 and 42,902.96

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Solution

The fourth proportional to 73,117.16, 100,902.36 and 42,902.96 is: 59,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,117.16 : 100,902.36 = 42,902.96 : x
  2. Step 2: Convert to fraction form
    73,117.16/100,902.36 = 42,902.96/x
  3. Step 3: Cross multiply
    73,117.16x = 100,902.36 × 42,902.96
  4. Step 4: Simplify right side
    73,117.16x = 4,329,009,914.99
  5. Step 5: Solve for x
    x = 4,329,009,914.99/73,117.16
  6. Step 6: Final answer
    x = 59,206.48

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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.