Home / 64,143.30-96,312.15-49,368.90

Finding the Fourth Proportional to 64,143.30, 96,312.15 and 49,368.90

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Solution

The fourth proportional to 64,143.30, 96,312.15 and 49,368.90 is: 74,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,143.30 : 96,312.15 = 49,368.90 : x
  2. Step 2: Convert to fraction form
    64,143.30/96,312.15 = 49,368.90/x
  3. Step 3: Cross multiply
    64,143.30x = 96,312.15 × 49,368.90
  4. Step 4: Simplify right side
    64,143.30x = 4,754,824,902.14
  5. Step 5: Solve for x
    x = 4,754,824,902.14/64,143.30
  6. Step 6: Final answer
    x = 74,128.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.