Home / 61,682.34-85,077.72-42,569.40

Finding the Fourth Proportional to 61,682.34, 85,077.72 and 42,569.40

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Solution

The fourth proportional to 61,682.34, 85,077.72 and 42,569.40 is: 58,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,682.34 : 85,077.72 = 42,569.40 : x
  2. Step 2: Convert to fraction form
    61,682.34/85,077.72 = 42,569.40/x
  3. Step 3: Cross multiply
    61,682.34x = 85,077.72 × 42,569.40
  4. Step 4: Simplify right side
    61,682.34x = 3,621,707,493.77
  5. Step 5: Solve for x
    x = 3,621,707,493.77/61,682.34
  6. Step 6: Final answer
    x = 58,715.47

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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.