Home / 47,345.18-65,343.42-30,368.57

Finding the Fourth Proportional to 47,345.18, 65,343.42 and 30,368.57

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Solution

The fourth proportional to 47,345.18, 65,343.42 and 30,368.57 is: 41,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,345.18 : 65,343.42 = 30,368.57 : x
  2. Step 2: Convert to fraction form
    47,345.18/65,343.42 = 30,368.57/x
  3. Step 3: Cross multiply
    47,345.18x = 65,343.42 × 30,368.57
  4. Step 4: Simplify right side
    47,345.18x = 1,984,385,897.59
  5. Step 5: Solve for x
    x = 1,984,385,897.59/47,345.18
  6. Step 6: Final answer
    x = 41,913.16

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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.