Home / 53,210.60-79,675.10-42,631.40

Finding the Fourth Proportional to 53,210.60, 79,675.10 and 42,631.40

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Solution

The fourth proportional to 53,210.60, 79,675.10 and 42,631.40 is: 63,834.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,210.60 : 79,675.10 = 42,631.40 : x
  2. Step 2: Convert to fraction form
    53,210.60/79,675.10 = 42,631.40/x
  3. Step 3: Cross multiply
    53,210.60x = 79,675.10 × 42,631.40
  4. Step 4: Simplify right side
    53,210.60x = 3,396,661,058.14
  5. Step 5: Solve for x
    x = 3,396,661,058.14/53,210.60
  6. Step 6: Final answer
    x = 63,834.29

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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.