Home / 86,887.60-119,933.40-51,075.88

Finding the Fourth Proportional to 86,887.60, 119,933.40 and 51,075.88

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Solution

The fourth proportional to 86,887.60, 119,933.40 and 51,075.88 is: 70,501.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,887.60 : 119,933.40 = 51,075.88 : x
  2. Step 2: Convert to fraction form
    86,887.60/119,933.40 = 51,075.88/x
  3. Step 3: Cross multiply
    86,887.60x = 119,933.40 × 51,075.88
  4. Step 4: Simplify right side
    86,887.60x = 6,125,703,946.39
  5. Step 5: Solve for x
    x = 6,125,703,946.39/86,887.60
  6. Step 6: Final answer
    x = 70,501.47

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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.