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Finding the Fourth Proportional to 63,510.80, 87,616.55 and 40,845.51

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Solution

The fourth proportional to 63,510.80, 87,616.55 and 40,845.51 is: 56,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,510.80 : 87,616.55 = 40,845.51 : x
  2. Step 2: Convert to fraction form
    63,510.80/87,616.55 = 40,845.51/x
  3. Step 3: Cross multiply
    63,510.80x = 87,616.55 × 40,845.51
  4. Step 4: Simplify right side
    63,510.80x = 3,578,742,771.30
  5. Step 5: Solve for x
    x = 3,578,742,771.30/63,510.80
  6. Step 6: Final answer
    x = 56,348.57

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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.