Home / 61,005.40-91,483.49-18,875.58

Finding the Fourth Proportional to 61,005.40, 91,483.49 and 18,875.58

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Solution

The fourth proportional to 61,005.40, 91,483.49 and 18,875.58 is: 28,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,005.40 : 91,483.49 = 18,875.58 : x
  2. Step 2: Convert to fraction form
    61,005.40/91,483.49 = 18,875.58/x
  3. Step 3: Cross multiply
    61,005.40x = 91,483.49 × 18,875.58
  4. Step 4: Simplify right side
    61,005.40x = 1,726,803,638.30
  5. Step 5: Solve for x
    x = 1,726,803,638.30/61,005.40
  6. Step 6: Final answer
    x = 28,305.75

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1.5x scale

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.