Home / 98,946.72-148,426.80-39,782.40

Finding the Fourth Proportional to 98,946.72, 148,426.80 and 39,782.40

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Solution

The fourth proportional to 98,946.72, 148,426.80 and 39,782.40 is: 59,676.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,946.72 : 148,426.80 = 39,782.40 : x
  2. Step 2: Convert to fraction form
    98,946.72/148,426.80 = 39,782.40/x
  3. Step 3: Cross multiply
    98,946.72x = 148,426.80 × 39,782.40
  4. Step 4: Simplify right side
    98,946.72x = 5,904,774,328.32
  5. Step 5: Solve for x
    x = 5,904,774,328.32/98,946.72
  6. Step 6: Final answer
    x = 59,676.30

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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.