Home / 70,565.16-97,381.76-40,355.40

Finding the Fourth Proportional to 70,565.16, 97,381.76 and 40,355.40

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Solution

The fourth proportional to 70,565.16, 97,381.76 and 40,355.40 is: 55,691.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,565.16 : 97,381.76 = 40,355.40 : x
  2. Step 2: Convert to fraction form
    70,565.16/97,381.76 = 40,355.40/x
  3. Step 3: Cross multiply
    70,565.16x = 97,381.76 × 40,355.40
  4. Step 4: Simplify right side
    70,565.16x = 3,929,879,877.50
  5. Step 5: Solve for x
    x = 3,929,879,877.50/70,565.16
  6. Step 6: Final answer
    x = 55,691.50

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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.