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Finding the Fourth Proportional to 93,281.29, 128,597.74 and 78,883.27

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Solution

The fourth proportional to 93,281.29, 128,597.74 and 78,883.27 is: 108,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,281.29 : 128,597.74 = 78,883.27 : x
  2. Step 2: Convert to fraction form
    93,281.29/128,597.74 = 78,883.27/x
  3. Step 3: Cross multiply
    93,281.29x = 128,597.74 × 78,883.27
  4. Step 4: Simplify right side
    93,281.29x = 10,144,209,727.11
  5. Step 5: Solve for x
    x = 10,144,209,727.11/93,281.29
  6. Step 6: Final answer
    x = 108,748.60

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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.