Home / 67,909.42-93,649.76-40,681.21

Finding the Fourth Proportional to 67,909.42, 93,649.76 and 40,681.21

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Solution

The fourth proportional to 67,909.42, 93,649.76 and 40,681.21 is: 56,100.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,909.42 : 93,649.76 = 40,681.21 : x
  2. Step 2: Convert to fraction form
    67,909.42/93,649.76 = 40,681.21/x
  3. Step 3: Cross multiply
    67,909.42x = 93,649.76 × 40,681.21
  4. Step 4: Simplify right side
    67,909.42x = 3,809,784,881.35
  5. Step 5: Solve for x
    x = 3,809,784,881.35/67,909.42
  6. Step 6: Final answer
    x = 56,100.98

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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.