Home / 42,210.40-63,315.60-41,918.80

Finding the Fourth Proportional to 42,210.40, 63,315.60 and 41,918.80

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Solution

The fourth proportional to 42,210.40, 63,315.60 and 41,918.80 is: 62,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,210.40 : 63,315.60 = 41,918.80 : x
  2. Step 2: Convert to fraction form
    42,210.40/63,315.60 = 41,918.80/x
  3. Step 3: Cross multiply
    42,210.40x = 63,315.60 × 41,918.80
  4. Step 4: Simplify right side
    42,210.40x = 2,654,113,973.28
  5. Step 5: Solve for x
    x = 2,654,113,973.28/42,210.40
  6. Step 6: Final answer
    x = 62,878.20

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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.