Home / 78,242.49-107,957.75-46,421.91

Finding the Fourth Proportional to 78,242.49, 107,957.75 and 46,421.91

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Solution

The fourth proportional to 78,242.49, 107,957.75 and 46,421.91 is: 64,052.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,242.49 : 107,957.75 = 46,421.91 : x
  2. Step 2: Convert to fraction form
    78,242.49/107,957.75 = 46,421.91/x
  3. Step 3: Cross multiply
    78,242.49x = 107,957.75 × 46,421.91
  4. Step 4: Simplify right side
    78,242.49x = 5,011,604,722.19
  5. Step 5: Solve for x
    x = 5,011,604,722.19/78,242.49
  6. Step 6: Final answer
    x = 64,052.21

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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.