Home / 56,089.13-77,402.99-30,938.63

Finding the Fourth Proportional to 56,089.13, 77,402.99 and 30,938.63

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Solution

The fourth proportional to 56,089.13, 77,402.99 and 30,938.63 is: 42,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,089.13 : 77,402.99 = 30,938.63 : x
  2. Step 2: Convert to fraction form
    56,089.13/77,402.99 = 30,938.63/x
  3. Step 3: Cross multiply
    56,089.13x = 77,402.99 × 30,938.63
  4. Step 4: Simplify right side
    56,089.13x = 2,394,742,158.84
  5. Step 5: Solve for x
    x = 2,394,742,158.84/56,089.13
  6. Step 6: Final answer
    x = 42,695.30

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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.