Home / 63,075.60-87,040.32-34,781.28

Finding the Fourth Proportional to 63,075.60, 87,040.32 and 34,781.28

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Solution

The fourth proportional to 63,075.60, 87,040.32 and 34,781.28 is: 47,995.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,075.60 : 87,040.32 = 34,781.28 : x
  2. Step 2: Convert to fraction form
    63,075.60/87,040.32 = 34,781.28/x
  3. Step 3: Cross multiply
    63,075.60x = 87,040.32 × 34,781.28
  4. Step 4: Simplify right side
    63,075.60x = 3,027,373,741.21
  5. Step 5: Solve for x
    x = 3,027,373,741.21/63,075.60
  6. Step 6: Final answer
    x = 47,995.96

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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.