Home / 86,316.96-129,421.84-36,371.36

Finding the Fourth Proportional to 86,316.96, 129,421.84 and 36,371.36

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Solution

The fourth proportional to 86,316.96, 129,421.84 and 36,371.36 is: 54,534.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,316.96 : 129,421.84 = 36,371.36 : x
  2. Step 2: Convert to fraction form
    86,316.96/129,421.84 = 36,371.36/x
  3. Step 3: Cross multiply
    86,316.96x = 129,421.84 × 36,371.36
  4. Step 4: Simplify right side
    86,316.96x = 4,707,248,334.50
  5. Step 5: Solve for x
    x = 4,707,248,334.50/86,316.96
  6. Step 6: Final answer
    x = 54,534.45

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1.5x scale

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.