Home / 64,971.16-89,657.66-40,785.14

Finding the Fourth Proportional to 64,971.16, 89,657.66 and 40,785.14

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Solution

The fourth proportional to 64,971.16, 89,657.66 and 40,785.14 is: 56,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,971.16 : 89,657.66 = 40,785.14 : x
  2. Step 2: Convert to fraction form
    64,971.16/89,657.66 = 40,785.14/x
  3. Step 3: Cross multiply
    64,971.16x = 89,657.66 × 40,785.14
  4. Step 4: Simplify right side
    64,971.16x = 3,656,700,215.17
  5. Step 5: Solve for x
    x = 3,656,700,215.17/64,971.16
  6. Step 6: Final answer
    x = 56,281.90

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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.