Home / 93,780.82-129,417.63-51,339.45

Finding the Fourth Proportional to 93,780.82, 129,417.63 and 51,339.45

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Solution

The fourth proportional to 93,780.82, 129,417.63 and 51,339.45 is: 70,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,780.82 : 129,417.63 = 51,339.45 : x
  2. Step 2: Convert to fraction form
    93,780.82/129,417.63 = 51,339.45/x
  3. Step 3: Cross multiply
    93,780.82x = 129,417.63 × 51,339.45
  4. Step 4: Simplify right side
    93,780.82x = 6,644,229,944.50
  5. Step 5: Solve for x
    x = 6,644,229,944.50/93,780.82
  6. Step 6: Final answer
    x = 70,848.49

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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.