Home / 63,315.81-87,339.33-40,303.08

Finding the Fourth Proportional to 63,315.81, 87,339.33 and 40,303.08

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Solution

The fourth proportional to 63,315.81, 87,339.33 and 40,303.08 is: 55,595.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,315.81 : 87,339.33 = 40,303.08 : x
  2. Step 2: Convert to fraction form
    63,315.81/87,339.33 = 40,303.08/x
  3. Step 3: Cross multiply
    63,315.81x = 87,339.33 × 40,303.08
  4. Step 4: Simplify right side
    63,315.81x = 3,520,044,004.14
  5. Step 5: Solve for x
    x = 3,520,044,004.14/63,315.81
  6. Step 6: Final answer
    x = 55,595.02

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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.