Home / 76,210.40-105,173.68-42,675.68

Finding the Fourth Proportional to 76,210.40, 105,173.68 and 42,675.68

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Solution

The fourth proportional to 76,210.40, 105,173.68 and 42,675.68 is: 58,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,210.40 : 105,173.68 = 42,675.68 : x
  2. Step 2: Convert to fraction form
    76,210.40/105,173.68 = 42,675.68/x
  3. Step 3: Cross multiply
    76,210.40x = 105,173.68 × 42,675.68
  4. Step 4: Simplify right side
    76,210.40x = 4,488,358,312.10
  5. Step 5: Solve for x
    x = 4,488,358,312.10/76,210.40
  6. Step 6: Final answer
    x = 58,894.30

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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.