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Finding the Fourth Proportional to 93,235.40, 128,620.76 and 63,031.32

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Solution

The fourth proportional to 93,235.40, 128,620.76 and 63,031.32 is: 86,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,235.40 : 128,620.76 = 63,031.32 : x
  2. Step 2: Convert to fraction form
    93,235.40/128,620.76 = 63,031.32/x
  3. Step 3: Cross multiply
    93,235.40x = 128,620.76 × 63,031.32
  4. Step 4: Simplify right side
    93,235.40x = 8,107,136,282.20
  5. Step 5: Solve for x
    x = 8,107,136,282.20/93,235.40
  6. Step 6: Final answer
    x = 86,953.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.