Home / 65,376.01-90,116.54-42,703.66

Finding the Fourth Proportional to 65,376.01, 90,116.54 and 42,703.66

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Solution

The fourth proportional to 65,376.01, 90,116.54 and 42,703.66 is: 58,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,376.01 : 90,116.54 = 42,703.66 : x
  2. Step 2: Convert to fraction form
    65,376.01/90,116.54 = 42,703.66/x
  3. Step 3: Cross multiply
    65,376.01x = 90,116.54 × 42,703.66
  4. Step 4: Simplify right side
    65,376.01x = 3,848,306,084.54
  5. Step 5: Solve for x
    x = 3,848,306,084.54/65,376.01
  6. Step 6: Final answer
    x = 58,864.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.