Home / 42,076-63,114.48-10,909.36

Finding the Fourth Proportional to 42,076, 63,114.48 and 10,909.36

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Solution

The fourth proportional to 42,076, 63,114.48 and 10,909.36 is: 16,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,076 : 63,114.48 = 10,909.36 : x
  2. Step 2: Convert to fraction form
    42,076/63,114.48 = 10,909.36/x
  3. Step 3: Cross multiply
    42,076x = 63,114.48 × 10,909.36
  4. Step 4: Simplify right side
    42,076x = 688,538,583.53
  5. Step 5: Solve for x
    x = 688,538,583.53/42,076
  6. Step 6: Final answer
    x = 16,364.16

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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.