Home / 76,307.36-105,302.19-42,315.30

Finding the Fourth Proportional to 76,307.36, 105,302.19 and 42,315.30

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Solution

The fourth proportional to 76,307.36, 105,302.19 and 42,315.30 is: 58,394.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,307.36 : 105,302.19 = 42,315.30 : x
  2. Step 2: Convert to fraction form
    76,307.36/105,302.19 = 42,315.30/x
  3. Step 3: Cross multiply
    76,307.36x = 105,302.19 × 42,315.30
  4. Step 4: Simplify right side
    76,307.36x = 4,455,893,760.51
  5. Step 5: Solve for x
    x = 4,455,893,760.51/76,307.36
  6. Step 6: Final answer
    x = 58,394.03

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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.