Home / 86,501.70-129,825.45-42,166.35

Finding the Fourth Proportional to 86,501.70, 129,825.45 and 42,166.35

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Solution

The fourth proportional to 86,501.70, 129,825.45 and 42,166.35 is: 63,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,501.70 : 129,825.45 = 42,166.35 : x
  2. Step 2: Convert to fraction form
    86,501.70/129,825.45 = 42,166.35/x
  3. Step 3: Cross multiply
    86,501.70x = 129,825.45 × 42,166.35
  4. Step 4: Simplify right side
    86,501.70x = 5,474,265,363.61
  5. Step 5: Solve for x
    x = 5,474,265,363.61/86,501.70
  6. Step 6: Final answer
    x = 63,285.06

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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.