Home / 63,435.09-87,498.43-40,802.83

Finding the Fourth Proportional to 63,435.09, 87,498.43 and 40,802.83

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Solution

The fourth proportional to 63,435.09, 87,498.43 and 40,802.83 is: 56,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,435.09 : 87,498.43 = 40,802.83 : x
  2. Step 2: Convert to fraction form
    63,435.09/87,498.43 = 40,802.83/x
  3. Step 3: Cross multiply
    63,435.09x = 87,498.43 × 40,802.83
  4. Step 4: Simplify right side
    63,435.09x = 3,570,183,243.80
  5. Step 5: Solve for x
    x = 3,570,183,243.80/63,435.09
  6. Step 6: Final answer
    x = 56,280.89

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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.