Home / 86,017.77-129,041.79-39,275.37

Finding the Fourth Proportional to 86,017.77, 129,041.79 and 39,275.37

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Solution

The fourth proportional to 86,017.77, 129,041.79 and 39,275.37 is: 58,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,017.77 : 129,041.79 = 39,275.37 : x
  2. Step 2: Convert to fraction form
    86,017.77/129,041.79 = 39,275.37/x
  3. Step 3: Cross multiply
    86,017.77x = 129,041.79 × 39,275.37
  4. Step 4: Simplify right side
    86,017.77x = 5,068,163,851.34
  5. Step 5: Solve for x
    x = 5,068,163,851.34/86,017.77
  6. Step 6: Final answer
    x = 58,919.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.