Home / 56,312.16-77,709.96-30,817.92

Finding the Fourth Proportional to 56,312.16, 77,709.96 and 30,817.92

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Solution

The fourth proportional to 56,312.16, 77,709.96 and 30,817.92 is: 42,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,312.16 : 77,709.96 = 30,817.92 : x
  2. Step 2: Convert to fraction form
    56,312.16/77,709.96 = 30,817.92/x
  3. Step 3: Cross multiply
    56,312.16x = 77,709.96 × 30,817.92
  4. Step 4: Simplify right side
    56,312.16x = 2,394,859,330.48
  5. Step 5: Solve for x
    x = 2,394,859,330.48/56,312.16
  6. Step 6: Final answer
    x = 42,528.28

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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.