Home / 45,140.48-67,710.65-13,550.51

Finding the Fourth Proportional to 45,140.48, 67,710.65 and 13,550.51

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Solution

The fourth proportional to 45,140.48, 67,710.65 and 13,550.51 is: 20,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,140.48 : 67,710.65 = 13,550.51 : x
  2. Step 2: Convert to fraction form
    45,140.48/67,710.65 = 13,550.51/x
  3. Step 3: Cross multiply
    45,140.48x = 67,710.65 × 13,550.51
  4. Step 4: Simplify right side
    45,140.48x = 917,513,839.93
  5. Step 5: Solve for x
    x = 917,513,839.93/45,140.48
  6. Step 6: Final answer
    x = 20,325.74

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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.