Home / 70,328.16-105,565.14-47,116.80

Finding the Fourth Proportional to 70,328.16, 105,565.14 and 47,116.80

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Solution

The fourth proportional to 70,328.16, 105,565.14 and 47,116.80 is: 70,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,328.16 : 105,565.14 = 47,116.80 : x
  2. Step 2: Convert to fraction form
    70,328.16/105,565.14 = 47,116.80/x
  3. Step 3: Cross multiply
    70,328.16x = 105,565.14 × 47,116.80
  4. Step 4: Simplify right side
    70,328.16x = 4,973,891,588.35
  5. Step 5: Solve for x
    x = 4,973,891,588.35/70,328.16
  6. Step 6: Final answer
    x = 70,724.04

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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.