Home / 76,070.04-104,980.34-42,078.38

Finding the Fourth Proportional to 76,070.04, 104,980.34 and 42,078.38

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Solution

The fourth proportional to 76,070.04, 104,980.34 and 42,078.38 is: 58,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,070.04 : 104,980.34 = 42,078.38 : x
  2. Step 2: Convert to fraction form
    76,070.04/104,980.34 = 42,078.38/x
  3. Step 3: Cross multiply
    76,070.04x = 104,980.34 × 42,078.38
  4. Step 4: Simplify right side
    76,070.04x = 4,417,402,639.05
  5. Step 5: Solve for x
    x = 4,417,402,639.05/76,070.04
  6. Step 6: Final answer
    x = 58,070.20

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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.