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Finding the Fourth Proportional to 88,038, 121,492.64 and 50,312.16

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Solution

The fourth proportional to 88,038, 121,492.64 and 50,312.16 is: 69,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,038 : 121,492.64 = 50,312.16 : x
  2. Step 2: Convert to fraction form
    88,038/121,492.64 = 50,312.16/x
  3. Step 3: Cross multiply
    88,038x = 121,492.64 × 50,312.16
  4. Step 4: Simplify right side
    88,038x = 6,112,557,142.50
  5. Step 5: Solve for x
    x = 6,112,557,142.50/88,038
  6. Step 6: Final answer
    x = 69,430.90

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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.