Home / 86,487.50-119,290.82-56,216.36

Finding the Fourth Proportional to 86,487.50, 119,290.82 and 56,216.36

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Solution

The fourth proportional to 86,487.50, 119,290.82 and 56,216.36 is: 77,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,487.50 : 119,290.82 = 56,216.36 : x
  2. Step 2: Convert to fraction form
    86,487.50/119,290.82 = 56,216.36/x
  3. Step 3: Cross multiply
    86,487.50x = 119,290.82 × 56,216.36
  4. Step 4: Simplify right side
    86,487.50x = 6,706,095,681.82
  5. Step 5: Solve for x
    x = 6,706,095,681.82/86,487.50
  6. Step 6: Final answer
    x = 77,538.32

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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.