Home / 56,088.72-77,398.92-30,938.16

Finding the Fourth Proportional to 56,088.72, 77,398.92 and 30,938.16

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Solution

The fourth proportional to 56,088.72, 77,398.92 and 30,938.16 is: 42,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,088.72 : 77,398.92 = 30,938.16 : x
  2. Step 2: Convert to fraction form
    56,088.72/77,398.92 = 30,938.16/x
  3. Step 3: Cross multiply
    56,088.72x = 77,398.92 × 30,938.16
  4. Step 4: Simplify right side
    56,088.72x = 2,394,580,170.79
  5. Step 5: Solve for x
    x = 2,394,580,170.79/56,088.72
  6. Step 6: Final answer
    x = 42,692.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.