Home / 83,210.40-124,815.60-56,638.35

Finding the Fourth Proportional to 83,210.40, 124,815.60 and 56,638.35

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Solution

The fourth proportional to 83,210.40, 124,815.60 and 56,638.35 is: 84,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,210.40 : 124,815.60 = 56,638.35 : x
  2. Step 2: Convert to fraction form
    83,210.40/124,815.60 = 56,638.35/x
  3. Step 3: Cross multiply
    83,210.40x = 124,815.60 × 56,638.35
  4. Step 4: Simplify right side
    83,210.40x = 7,069,349,638.26
  5. Step 5: Solve for x
    x = 7,069,349,638.26/83,210.40
  6. Step 6: Final answer
    x = 84,957.53

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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.