Home / 78,284.04-108,031.16-42,473.76

Finding the Fourth Proportional to 78,284.04, 108,031.16 and 42,473.76

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Solution

The fourth proportional to 78,284.04, 108,031.16 and 42,473.76 is: 58,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,284.04 : 108,031.16 = 42,473.76 : x
  2. Step 2: Convert to fraction form
    78,284.04/108,031.16 = 42,473.76/x
  3. Step 3: Cross multiply
    78,284.04x = 108,031.16 × 42,473.76
  4. Step 4: Simplify right side
    78,284.04x = 4,588,489,562.36
  5. Step 5: Solve for x
    x = 4,588,489,562.36/78,284.04
  6. Step 6: Final answer
    x = 58,613.35

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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.