Home / 89,851.68-123,988.32-52,128.36

Finding the Fourth Proportional to 89,851.68, 123,988.32 and 52,128.36

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Solution

The fourth proportional to 89,851.68, 123,988.32 and 52,128.36 is: 71,933.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,851.68 : 123,988.32 = 52,128.36 : x
  2. Step 2: Convert to fraction form
    89,851.68/123,988.32 = 52,128.36/x
  3. Step 3: Cross multiply
    89,851.68x = 123,988.32 × 52,128.36
  4. Step 4: Simplify right side
    89,851.68x = 6,463,307,780.76
  5. Step 5: Solve for x
    x = 6,463,307,780.76/89,851.68
  6. Step 6: Final answer
    x = 71,933.08

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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.