Home / 86,550.84-129,842.06-39,802.50

Finding the Fourth Proportional to 86,550.84, 129,842.06 and 39,802.50

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Solution

The fourth proportional to 86,550.84, 129,842.06 and 39,802.50 is: 59,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,550.84 : 129,842.06 = 39,802.50 : x
  2. Step 2: Convert to fraction form
    86,550.84/129,842.06 = 39,802.50/x
  3. Step 3: Cross multiply
    86,550.84x = 129,842.06 × 39,802.50
  4. Step 4: Simplify right side
    86,550.84x = 5,168,038,394.14
  5. Step 5: Solve for x
    x = 5,168,038,394.14/86,550.84
  6. Step 6: Final answer
    x = 59,711.01

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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.