Home / 74,649.03-103,029.08-42,828.45

Finding the Fourth Proportional to 74,649.03, 103,029.08 and 42,828.45

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Solution

The fourth proportional to 74,649.03, 103,029.08 and 42,828.45 is: 59,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,649.03 : 103,029.08 = 42,828.45 : x
  2. Step 2: Convert to fraction form
    74,649.03/103,029.08 = 42,828.45/x
  3. Step 3: Cross multiply
    74,649.03x = 103,029.08 × 42,828.45
  4. Step 4: Simplify right side
    74,649.03x = 4,412,575,587.18
  5. Step 5: Solve for x
    x = 4,412,575,587.18/74,649.03
  6. Step 6: Final answer
    x = 59,110.96

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1.5x scale

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.