Home / 78,935.04-108,931.32-43,125.48

Finding the Fourth Proportional to 78,935.04, 108,931.32 and 43,125.48

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Solution

The fourth proportional to 78,935.04, 108,931.32 and 43,125.48 is: 59,513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,935.04 : 108,931.32 = 43,125.48 : x
  2. Step 2: Convert to fraction form
    78,935.04/108,931.32 = 43,125.48/x
  3. Step 3: Cross multiply
    78,935.04x = 108,931.32 × 43,125.48
  4. Step 4: Simplify right side
    78,935.04x = 4,697,715,462.03
  5. Step 5: Solve for x
    x = 4,697,715,462.03/78,935.04
  6. Step 6: Final answer
    x = 59,513.69

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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.