Home / 86,886.24-119,931.36-51,075.36

Finding the Fourth Proportional to 86,886.24, 119,931.36 and 51,075.36

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Solution

The fourth proportional to 86,886.24, 119,931.36 and 51,075.36 is: 70,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,886.24 : 119,931.36 = 51,075.36 : x
  2. Step 2: Convert to fraction form
    86,886.24/119,931.36 = 51,075.36/x
  3. Step 3: Cross multiply
    86,886.24x = 119,931.36 × 51,075.36
  4. Step 4: Simplify right side
    86,886.24x = 6,125,537,387.29
  5. Step 5: Solve for x
    x = 6,125,537,387.29/86,886.24
  6. Step 6: Final answer
    x = 70,500.66

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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.