Home / 56,542.65-78,038.91-42,274.08

Finding the Fourth Proportional to 56,542.65, 78,038.91 and 42,274.08

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Solution

The fourth proportional to 56,542.65, 78,038.91 and 42,274.08 is: 58,345.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,542.65 : 78,038.91 = 42,274.08 : x
  2. Step 2: Convert to fraction form
    56,542.65/78,038.91 = 42,274.08/x
  3. Step 3: Cross multiply
    56,542.65x = 78,038.91 × 42,274.08
  4. Step 4: Simplify right side
    56,542.65x = 3,299,023,124.45
  5. Step 5: Solve for x
    x = 3,299,023,124.45/56,542.65
  6. Step 6: Final answer
    x = 58,345.75

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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.