Home / 86,897.32-119,931.12-55,069.12

Finding the Fourth Proportional to 86,897.32, 119,931.12 and 55,069.12

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Solution

The fourth proportional to 86,897.32, 119,931.12 and 55,069.12 is: 76,003.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,897.32 : 119,931.12 = 55,069.12 : x
  2. Step 2: Convert to fraction form
    86,897.32/119,931.12 = 55,069.12/x
  3. Step 3: Cross multiply
    86,897.32x = 119,931.12 × 55,069.12
  4. Step 4: Simplify right side
    86,897.32x = 6,604,501,239.01
  5. Step 5: Solve for x
    x = 6,604,501,239.01/86,897.32
  6. Step 6: Final answer
    x = 76,003.51

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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.