Home / 78,302.16-108,061.32-44,312.40

Finding the Fourth Proportional to 78,302.16, 108,061.32 and 44,312.40

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Solution

The fourth proportional to 78,302.16, 108,061.32 and 44,312.40 is: 61,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,302.16 : 108,061.32 = 44,312.40 : x
  2. Step 2: Convert to fraction form
    78,302.16/108,061.32 = 44,312.40/x
  3. Step 3: Cross multiply
    78,302.16x = 108,061.32 × 44,312.40
  4. Step 4: Simplify right side
    78,302.16x = 4,788,456,436.37
  5. Step 5: Solve for x
    x = 4,788,456,436.37/78,302.16
  6. Step 6: Final answer
    x = 61,153.57

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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.