Home / 66,779.02-92,217.59-42,947.20

Finding the Fourth Proportional to 66,779.02, 92,217.59 and 42,947.20

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Solution

The fourth proportional to 66,779.02, 92,217.59 and 42,947.20 is: 59,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,779.02 : 92,217.59 = 42,947.20 : x
  2. Step 2: Convert to fraction form
    66,779.02/92,217.59 = 42,947.20/x
  3. Step 3: Cross multiply
    66,779.02x = 92,217.59 × 42,947.20
  4. Step 4: Simplify right side
    66,779.02x = 3,960,487,281.25
  5. Step 5: Solve for x
    x = 3,960,487,281.25/66,779.02
  6. Step 6: Final answer
    x = 59,307.36

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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.