Home / 42,312.65-58,658.75-40,065.57

Finding the Fourth Proportional to 42,312.65, 58,658.75 and 40,065.57

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Solution

The fourth proportional to 42,312.65, 58,658.75 and 40,065.57 is: 55,543.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,312.65 : 58,658.75 = 40,065.57 : x
  2. Step 2: Convert to fraction form
    42,312.65/58,658.75 = 40,065.57/x
  3. Step 3: Cross multiply
    42,312.65x = 58,658.75 × 40,065.57
  4. Step 4: Simplify right side
    42,312.65x = 2,350,196,204.16
  5. Step 5: Solve for x
    x = 2,350,196,204.16/42,312.65
  6. Step 6: Final answer
    x = 55,543.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.