Home / 86,526.78-129,713.02-46,567.21

Finding the Fourth Proportional to 86,526.78, 129,713.02 and 46,567.21

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Solution

The fourth proportional to 86,526.78, 129,713.02 and 46,567.21 is: 69,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,526.78 : 129,713.02 = 46,567.21 : x
  2. Step 2: Convert to fraction form
    86,526.78/129,713.02 = 46,567.21/x
  3. Step 3: Cross multiply
    86,526.78x = 129,713.02 × 46,567.21
  4. Step 4: Simplify right side
    86,526.78x = 6,040,373,466.76
  5. Step 5: Solve for x
    x = 6,040,373,466.76/86,526.78
  6. Step 6: Final answer
    x = 69,809.30

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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.