Home / 78,024.42-107,673.12-42,214.32

Finding the Fourth Proportional to 78,024.42, 107,673.12 and 42,214.32

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Solution

The fourth proportional to 78,024.42, 107,673.12 and 42,214.32 is: 58,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,024.42 : 107,673.12 = 42,214.32 : x
  2. Step 2: Convert to fraction form
    78,024.42/107,673.12 = 42,214.32/x
  3. Step 3: Cross multiply
    78,024.42x = 107,673.12 × 42,214.32
  4. Step 4: Simplify right side
    78,024.42x = 4,545,347,543.08
  5. Step 5: Solve for x
    x = 4,545,347,543.08/78,024.42
  6. Step 6: Final answer
    x = 58,255.45

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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.