Home / 78,024.47-107,673.48-42,214.50

Finding the Fourth Proportional to 78,024.47, 107,673.48 and 42,214.50

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Solution

The fourth proportional to 78,024.47, 107,673.48 and 42,214.50 is: 58,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,024.47 : 107,673.48 = 42,214.50 : x
  2. Step 2: Convert to fraction form
    78,024.47/107,673.48 = 42,214.50/x
  3. Step 3: Cross multiply
    78,024.47x = 107,673.48 × 42,214.50
  4. Step 4: Simplify right side
    78,024.47x = 4,545,382,121.46
  5. Step 5: Solve for x
    x = 4,545,382,121.46/78,024.47
  6. Step 6: Final answer
    x = 58,255.86

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1.5x scale

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.