Home / 61,066.14-91,605-18,946.68

Finding the Fourth Proportional to 61,066.14, 91,605 and 18,946.68

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Solution

The fourth proportional to 61,066.14, 91,605 and 18,946.68 is: 28,421.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,066.14 : 91,605 = 18,946.68 : x
  2. Step 2: Convert to fraction form
    61,066.14/91,605 = 18,946.68/x
  3. Step 3: Cross multiply
    61,066.14x = 91,605 × 18,946.68
  4. Step 4: Simplify right side
    61,066.14x = 1,735,610,621.40
  5. Step 5: Solve for x
    x = 1,735,610,621.40/61,066.14
  6. Step 6: Final answer
    x = 28,421.82

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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.