Home / 42,063.07-63,094.63-12,480.64

Finding the Fourth Proportional to 42,063.07, 63,094.63 and 12,480.64

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Solution

The fourth proportional to 42,063.07, 63,094.63 and 12,480.64 is: 18,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,063.07 : 63,094.63 = 12,480.64 : x
  2. Step 2: Convert to fraction form
    42,063.07/63,094.63 = 12,480.64/x
  3. Step 3: Cross multiply
    42,063.07x = 63,094.63 × 12,480.64
  4. Step 4: Simplify right side
    42,063.07x = 787,461,693.71
  5. Step 5: Solve for x
    x = 787,461,693.71/42,063.07
  6. Step 6: Final answer
    x = 18,720.97

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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.