Home / 76,509.04-105,602.52-42,985.84

Finding the Fourth Proportional to 76,509.04, 105,602.52 and 42,985.84

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Solution

The fourth proportional to 76,509.04, 105,602.52 and 42,985.84 is: 59,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,509.04 : 105,602.52 = 42,985.84 : x
  2. Step 2: Convert to fraction form
    76,509.04/105,602.52 = 42,985.84/x
  3. Step 3: Cross multiply
    76,509.04x = 105,602.52 × 42,985.84
  4. Step 4: Simplify right side
    76,509.04x = 4,539,413,028.32
  5. Step 5: Solve for x
    x = 4,539,413,028.32/76,509.04
  6. Step 6: Final answer
    x = 59,331.72

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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.