Home / 42,920.80-64,304.16-26,272.96

Finding the Fourth Proportional to 42,920.80, 64,304.16 and 26,272.96

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Solution

The fourth proportional to 42,920.80, 64,304.16 and 26,272.96 is: 39,362.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,920.80 : 64,304.16 = 26,272.96 : x
  2. Step 2: Convert to fraction form
    42,920.80/64,304.16 = 26,272.96/x
  3. Step 3: Cross multiply
    42,920.80x = 64,304.16 × 26,272.96
  4. Step 4: Simplify right side
    42,920.80x = 1,689,460,623.51
  5. Step 5: Solve for x
    x = 1,689,460,623.51/42,920.80
  6. Step 6: Final answer
    x = 39,362.28

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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.