Home / 57,239.04-85,862.40-19,802.76

Finding the Fourth Proportional to 57,239.04, 85,862.40 and 19,802.76

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Solution

The fourth proportional to 57,239.04, 85,862.40 and 19,802.76 is: 29,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,239.04 : 85,862.40 = 19,802.76 : x
  2. Step 2: Convert to fraction form
    57,239.04/85,862.40 = 19,802.76/x
  3. Step 3: Cross multiply
    57,239.04x = 85,862.40 × 19,802.76
  4. Step 4: Simplify right side
    57,239.04x = 1,700,312,500.22
  5. Step 5: Solve for x
    x = 1,700,312,500.22/57,239.04
  6. Step 6: Final answer
    x = 29,705.47

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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.