Home / 85,030.09-117,503.36-63,772.45

Finding the Fourth Proportional to 85,030.09, 117,503.36 and 63,772.45

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Solution

The fourth proportional to 85,030.09, 117,503.36 and 63,772.45 is: 88,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,030.09 : 117,503.36 = 63,772.45 : x
  2. Step 2: Convert to fraction form
    85,030.09/117,503.36 = 63,772.45/x
  3. Step 3: Cross multiply
    85,030.09x = 117,503.36 × 63,772.45
  4. Step 4: Simplify right side
    85,030.09x = 7,493,476,776.96
  5. Step 5: Solve for x
    x = 7,493,476,776.96/85,030.09
  6. Step 6: Final answer
    x = 88,127.36

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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.