Home / 42,785.12-59,055.79-30,041.40

Finding the Fourth Proportional to 42,785.12, 59,055.79 and 30,041.40

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Solution

The fourth proportional to 42,785.12, 59,055.79 and 30,041.40 is: 41,465.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,785.12 : 59,055.79 = 30,041.40 : x
  2. Step 2: Convert to fraction form
    42,785.12/59,055.79 = 30,041.40/x
  3. Step 3: Cross multiply
    42,785.12x = 59,055.79 × 30,041.40
  4. Step 4: Simplify right side
    42,785.12x = 1,774,118,534.60
  5. Step 5: Solve for x
    x = 1,774,118,534.60/42,785.12
  6. Step 6: Final answer
    x = 41,465.79

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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.