Home / 42,547.16-63,854.75-19,175.42

Finding the Fourth Proportional to 42,547.16, 63,854.75 and 19,175.42

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Solution

The fourth proportional to 42,547.16, 63,854.75 and 19,175.42 is: 28,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,547.16 : 63,854.75 = 19,175.42 : x
  2. Step 2: Convert to fraction form
    42,547.16/63,854.75 = 19,175.42/x
  3. Step 3: Cross multiply
    42,547.16x = 63,854.75 × 19,175.42
  4. Step 4: Simplify right side
    42,547.16x = 1,224,441,378.91
  5. Step 5: Solve for x
    x = 1,224,441,378.91/42,547.16
  6. Step 6: Final answer
    x = 28,778.45

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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.